python
diff --git a/‎extending/extending.po
+145-148 b/‎extending/extending.po
+145-148
diff --git a/‎howto/descriptor.po
+21-21 b/‎howto/descriptor.po
+21-21
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Python 3.10\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-10-26 16:47+0000\n"
+"POT-Creation-Date: 2021-11-20 00:08+0000\n"
 "PO-Revision-Date: 2018-05-23 14:36+0000\n"
 "Last-Translator: Adrian Liaw <adrianliaw2000@gmail.com>\n"
 "Language-Team: Chinese - TAIWAN (https://github.com/python/python-docs-zh-"
@@ -929,18 +929,18 @@ msgid ""
 "`staticmethod` would look like this:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1285
+#: ../../howto/descriptor.rst:1292
 msgid "Class methods"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1287
+#: ../../howto/descriptor.rst:1294
 msgid ""
 "Unlike static methods, class methods prepend the class reference to the "
 "argument list before calling the function.  This format is the same for "
 "whether the caller is an object or a class:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1305
+#: ../../howto/descriptor.rst:1312
 msgid ""
 "This behavior is useful whenever the method only needs to have a class "
 "reference and does not rely on data stored in a specific instance.  One use "
@@ -949,68 +949,68 @@ msgid ""
 "of keys.  The pure Python equivalent is:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1322
+#: ../../howto/descriptor.rst:1329
 msgid "Now a new dictionary of unique keys can be constructed like this:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1332
+#: ../../howto/descriptor.rst:1339
 msgid ""
 "Using the non-data descriptor protocol, a pure Python version of :func:"
 "`classmethod` would look like this:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1381
+#: ../../howto/descriptor.rst:1388
 msgid ""
 "The code path for ``hasattr(type(self.f), '__get__')`` was added in Python "
 "3.9 and makes it possible for :func:`classmethod` to support chained "
 "decorators.  For example, a classmethod and property could be chained "
 "together:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1401
+#: ../../howto/descriptor.rst:1408
 msgid "Member objects and __slots__"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1403
+#: ../../howto/descriptor.rst:1410
 msgid ""
 "When a class defines ``__slots__``, it replaces instance dictionaries with a "
 "fixed-length array of slot values.  From a user point of view that has "
 "several effects:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1407
+#: ../../howto/descriptor.rst:1414
 msgid ""
 "1. Provides immediate detection of bugs due to misspelled attribute "
 "assignments.  Only attribute names specified in ``__slots__`` are allowed:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1423
+#: ../../howto/descriptor.rst:1430
 msgid ""
 "2. Helps create immutable objects where descriptors manage access to private "
 "attributes stored in ``__slots__``:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1458
+#: ../../howto/descriptor.rst:1465
 msgid ""
 "3. Saves memory.  On a 64-bit Linux build, an instance with two attributes "
 "takes 48 bytes with ``__slots__`` and 152 bytes without.  This `flyweight "
 "design pattern <https://en.wikipedia.org/wiki/Flyweight_pattern>`_ likely "
 "only matters when a large number of instances are going to be created."
 msgstr ""
 
-#: ../../howto/descriptor.rst:1463
+#: ../../howto/descriptor.rst:1470
 msgid ""
 "4. Improves speed.  Reading instance variables is 35% faster with "
 "``__slots__`` (as measured with Python 3.10 on an Apple M1 processor)."
 msgstr ""
 
-#: ../../howto/descriptor.rst:1466
+#: ../../howto/descriptor.rst:1473
 msgid ""
 "5. Blocks tools like :func:`functools.cached_property` which require an "
 "instance dictionary to function correctly:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1488
+#: ../../howto/descriptor.rst:1495
 msgid ""
 "It is not possible to create an exact drop-in pure Python version of "
 "``__slots__`` because it requires direct access to C structures and control "
@@ -1020,36 +1020,36 @@ msgid ""
 "managed by member descriptors:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1531
+#: ../../howto/descriptor.rst:1538
 msgid ""
 "The :meth:`type.__new__` method takes care of adding member objects to class "
 "variables:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1547
+#: ../../howto/descriptor.rst:1554
 msgid ""
 "The :meth:`object.__new__` method takes care of creating instances that have "
 "slots instead of an instance dictionary.  Here is a rough simulation in pure "
 "Python:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1582
+#: ../../howto/descriptor.rst:1589
 msgid ""
 "To use the simulation in a real class, just inherit from :class:`Object` and "
 "set the :term:`metaclass` to :class:`Type`:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1596
+#: ../../howto/descriptor.rst:1603
 msgid ""
 "At this point, the metaclass has loaded member objects for *x* and *y*::"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1617
+#: ../../howto/descriptor.rst:1624
 msgid ""
 "When instances are created, they have a ``slot_values`` list where the "
 "attributes are stored:"
 msgstr ""
 
-#: ../../howto/descriptor.rst:1629
+#: ../../howto/descriptor.rst:1636
 msgid "Misspelled or unassigned attributes will raise an exception:"
 msgstr ""