莎拉十几岁时，她几乎和家人争吵所有事情。

When Sarah was a teenager, she used to fight over almost everything with her family.

当我十几岁和朋友出去时，她说：“请十点前回来！”

When I was a teen going out with friends, she said, Please be back by ten!

他在十几岁时就开始说唱了。

He started rapping when he was just a teenager.

他在十几岁的时候就开始说唱了。

He started to rap when he was just a teenager.

他在十几岁时就学会了驾驶双桅帆船。

He learned to navigate a ketch when he was just a teenager.

他在十几岁时就加入了一个杂技的剧团。

He joined an acrobatic troupe when he was just a teenager.

他们很少听十几岁发行的歌。

They seldom listen to songs released in their teens.

应该鼓励十几岁的女孩与信任的成年人谈论事情。

Teenage girls should be encouraged to talk about things with trusted adults.

几年前，我的弟妹开始为她十几岁的女儿感到担忧。

A few years ago, my sister in-law started to feel worried about her teenage daughter.

事实上，许多十几岁的男孩说不出来一个最好的朋友。

In fact, many teenage boys can't name a single best friend.