In addition, you must use the correct programming idiom to check if the collector has reclaimed the object before using it, and if it has, you must re-create the object first.

另外，您必须使用正确的编程风格以检查收集器在使用对象之前是否已经回收了它，如果已经回收了，您首先必须重新创建该对象。

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It just so happens we already have another well-established idiom to indicate that something is selected—the check box.

碰巧，我们已经有另外一个标准的习惯用法来指示某些事物的选择，即复选框。

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At the end of the study, a post-test is carried out to check that whether the conceptual metaphoric method for idiom-teaching is effective.

在实验结束时，为了检验概念隐喻教学方法是否对习语学习有效，两组研究对象分别参加了实验后测。

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