sixteen 四级六级

She began dating boys when she was sixteen.

16岁时就开始同男孩子约会了。

He was scarcely sixteen when he joined the army.

他参军时刚刚十岁。

When he was sixteen he joined a religious sect.

他16岁的时候加入了一宗教教派。

She was sixteen and sweetly innocent.

当时16 岁，真烂漫，招喜爱。

It's an imposition to ask the workers to work sixteen hours a day.

"要求每十小时,真是太过份了。"

Compulsory schooling ends at sixteen.

义务教育至16 岁为止。