Three boys were playing marbles.

三个男孩儿在玩弹子游戏。

《牛津词典》

David was the eldest of three boys.

大卫是3个男孩中年龄最大的一个。

《柯林斯英汉双解大词典》

He pleaded guilty to the murders of three boys and waived his right to appeal.

他对杀害了3个男孩的罪行表示认罪伏法，并放弃上诉的权利。

《柯林斯英汉双解大词典》

It shows three boys and a man in a small sailboat.

VOA: special.2010.07.25

Now we're going to hear Beach Boys, IV I guess,with a three-chord chord progression and it's going to be sub-dominant , V dominant , I tonic .

而现在我们来听听貌似是沙滩男孩，三和弦进行，然后将会是次属音，属音，和主音。

耶鲁公开课 - 聆听音乐课程节选

Okay.So that's an example of a classical composer, admittedly in a pretty straightforward situation, using the same three-chord chord progressions we find in the Beach Boys.

好，以上我们举了一个古典作曲家的例子，诚然这个选段的结构比较简单，直接了当，它所用的包含三个和弦的和弦进程与我们在Beach，Boys音乐中分析的相同。

耶鲁公开课 - 聆听音乐课程节选

They narrowed their search to three boys and in few days said they had located Emmanuel.

CENTERFORSECURITYPOLICY: Colombia��s Uribe unmasks the FARC

In a domestic-science class, three boys are making a presentation for a new washing-powder advertisement.

ECONOMIST: Japan

David Kidder is a serial entrepreneur, an author and the father of three boys.

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