diff --git a/aio/content/guide/hierarchical-dependency-injection.md b/aio/content/guide/hierarchical-dependency-injection.md
index 57959de752..b30ca17ee7 100644
--- a/aio/content/guide/hierarchical-dependency-injection.md
+++ b/aio/content/guide/hierarchical-dependency-injection.md
@@ -25,7 +25,7 @@ in this hierarchy using an `@NgModule()` or `@Injectable()` annotation.
 
    `ModuleInjector` 层次结构 —— 使用 `@NgModule()` 或 `@Injectable()` 注解在此层次结构中配置 `ModuleInjector`。
 
-1. `ElementInjector` hierarchy—created implicitly at each
+2. `ElementInjector` hierarchy—created implicitly at each
 DOM element. An `ElementInjector` is empty by default
 unless you configure it in the `providers` property on
 `@Directive()` or `@Component()`.
@@ -309,7 +309,7 @@ resolves it in two phases:
 
    针对 `ElementInjector` 层次结构（其父级）
 
-1. Against the `ModuleInjector` hierarchy (its parents)
+2. Against the `ModuleInjector` hierarchy (its parents)
 
    针对 `ModuleInjector` 层次结构（其父级）