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1·He fell head first down the stairs.

他倒栽葱摔下楼梯。《牛津词典》

2·He overbalanced and fell head first.

他失去了平衡，头部先着了地。《柯林斯英汉双解大词典》

3·She got divorced and rushed head first into another marriage.

她离婚后又仓促再婚了。《牛津词典》

4·Don't plunge head first into another person's room.

别冒冒失失地撞进别人的房间。《新英汉大辞典》

5·Always relax your head first.

永远要先放松你的大脑。

6·She dived in head first.

她头朝下跳进水里。

7·Head first was the way to go, but it was too late now.

开始脑袋冲着前，但是时间有点来不及了。

8·They start with the head first so that they cannot get away.

它们从头部开始(吃)，所以它们不能够逃跑。

9·If they want to feed themselves head first into that meat grinder, let em.

如果他们想要把他们的头送入绞肉机里，那么请便吧。

10·Scott, 23, lifts his head first. He shakes Whitney, 25, and they climb their feet.

23岁的斯科特先抬起头来，接着他摇醒了25岁的惠特尼，他们要起床了。