对于在定义类和成员之前便要使用它们的情况，使用建议模式。

Use suggestion mode for situations where classes and members are used before they are defined.

youdao

建议模式的使用时机，是在尚未定义类别和成员前就要使用这些类别和成员的时候。

Use suggestion mode when classes and members are used before they are defined.

youdao

思考模式的一种方式是将其当作经验丰富的从业者的建议，除非建议碰巧出现在了正式的出版物中。

One way of thinking of patterns is as bits of advice from experienced practitioners, except that advice happens to be documented in a formal publication.

youdao