The complementary class of Arrays for the different collections is the collections class.

Arrays用于处理不同集合的辅助类是collections类。

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Beyond those examples we've seen so far, expando meta-classes also provide some complementary hooks. Four other kind of methods can be added to an expando meta-class.

除了我们已经看到的例子，expando元类也提供了一些补充的功能。

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As a complementary approach to the in-class English teaching, extra-curricular reading plays more and more an important role in it.

自主阅读是中学英语教学的一个重要组成部分，而课外自主阅读作为课堂教学的一个必要补充越来越受到人们关注。

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DOC's complementary suite of imaging solutions allows smartphone vendors to rapidly incorporate world-class cameras so users always have high-end imaging on hand.

WSJ: Samsung Licenses DigitalOptics Face Detection and Tracking Software