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docs: 修改语义错误，防止xx不要xx

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Coral Lee 2020-08-12 16:12:54 +08:00 committed by 雪狼
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aio/content/guide/template-syntax.md
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@ -3625,7 +3625,7 @@ Angular 的非空断言运算符 `!` 在 Angular 模板中具有相同的目的
When the Angular compiler turns your template into TypeScript code, When the Angular compiler turns your template into TypeScript code,
it prevents TypeScript from reporting that `item.color` might be `null` or `undefined`. it prevents TypeScript from reporting that `item.color` might be `null` or `undefined`.
当 Angular 编译器把你的模板转换成 TypeScript 代码时，它会防止 TypeScript 不要报告此 `item.color` 可能为 `null` 或 `undefined` 的错误。 当 Angular 编译器把你的模板转换成 TypeScript 代码时，它会防止 TypeScript 报告此 `item.color` 可能为 `null` 或 `undefined` 的错误。
Unlike the [_safe navigation operator_](guide/template-syntax#safe-navigation-operator "Safe navigation operator (?)"), Unlike the [_safe navigation operator_](guide/template-syntax#safe-navigation-operator "Safe navigation operator (?)"),
the non-null assertion operator does not guard against `null` or `undefined`. the non-null assertion operator does not guard against `null` or `undefined`.