update fixed update note (#276)

* update physics

* update input

* update

* update code sharing in getting-help.md

* Export Compliance

* update on file i/o

* pi / 4

* inputs

* forum url

* read only user

* html5 gamepad

* sdk api update

* update

* image properties

* update editor

* defold sdk update

* animation updates

* animation fix

* run as admin

* update bob

* update about AndroidX support

* software render

* linux-faq.md update

* 4.28.2021 updates

* Basis Universal format

* sound & mesh

* gamepad event mapping

* admob url

* Minor edit to building blocks intro text

* update gamepad & ios

* project settings

* libffi version

* scaling

* image compression

* update gamepads

* increase memory

* caching assets

* update 2021/10/6

* update 2021/10/16
blend-modes.md

* update 2021/11/12

* allow dynamic transforms update

* Bundle update

* update faq

* bullet & bob

* script properties update

* editor-styling

* build server url

* editor templates

* spine extension update

* Fix typo in the "optimizations" word in Chinese docs

* Update to material.md - Constants buffers

* Verify Graphics Calls

* H5 parameters

* OpenJDK downloads

* cn update corresponds to [pull 259](#259)

* application security

* porting guidelines

* update for 8f1651f

* cn update for 094bf6f

* cn update for 20fdfc5 & 6263317

* cn update for 7/19/2022

* title

* profiling update

* update editor.md

* update bob.md

* update shortcuts

* update fixed update note

docs/zh/manuals/application-lifecycle.md

@@ -76,6 +76,10 @@ end
 
 启动集合每个游戏对象组件都会被遍历到. 只要它们定义了 `update()` 函数, 就会在更新时被调用. 对于集合代理组件, 其内部 "update" 过程会递归进行下去.
 
+::: 注意
+如果 [物理模拟使用了固定时间步](/manuals/physics/#physics-updates) 则每个脚本里的 `fixed_update()` 也可能会被自动调用. 这有助于物理模拟使用固定时间间隔而产生稳定模拟效果.
+:::
+
 ::: 注意
 每个 `update()` 函数调用顺序不确定. 调用顺序和集合里所处位置无关.
 :::