diff --git a/aio/content/guide/upgrade.md b/aio/content/guide/upgrade.md
index df5851a95e..0664ae7228 100644
--- a/aio/content/guide/upgrade.md
+++ b/aio/content/guide/upgrade.md
@@ -668,10 +668,12 @@ directive somewhere on the HTML page. But for hybrid applications, you manually
manual JavaScript [`angular.bootstrap`](https://docs.angularjs.org/api/ng/function/angular.bootstrap)
method even before switching them to hybrid mode.
-单纯的 AngularJS 应用可以在 HTML 页面中使用 `ng-app` 指令进行引导,但对于混合式应用我们要通过 `UpgradeModule` 模块进行手动引导。在此之前,
+单纯的 AngularJS 应用可以在 HTML 页面中使用 `ng-app` 指令进行引导,但对于混合式应用我们要通过 `UpgradeModule` 模块进行手动引导。因此,在切换成混合式应用之前,最好先把 AngularJS 改写成使用 [`angular.bootstrap`](https://docs.angularjs.org/api/ng/function/angular.bootstrap) 进行手动引导的方式。
Say you have an `ng-app` driven bootstrap such as this one:
+比如我们现在有这样一个通过 `ng-app` 进行引导的应用:
+
@@ -679,7 +681,6 @@ You can remove the `ng-app` and `ng-strict-di` directives from the HTML
and instead switch to calling `angular.bootstrap` from JavaScript, which
will result in the same thing:
-
我们可以从HTML中移除`ng-app`和`ng-strict-di`指令,改为从JavaScript中调用`angular.bootstrap`,它能达到同样效果: