VOA慢速英语:Ear Care: Keeping Ears Clean

例句：Thirty miners were trapped underground after the fire.
      起火后有三十名矿工被困在地底下。

使受限制

例句：I trapped a lie in my throat.
      我把就要脱口而出的一句谎话忍住了。

2.commonly adv.通常地,一般地

例句：It is not a theory that is commonly subscribed to.
      一般人并不赞成这个理论。

      Leagues are commonly made for joint defence.
      结成联盟往往是为了共同防御。

3.expel v.排出，喷出

例句：The whale expelled water from his blowhole.
      鲸鱼从鼻孔排出水。

4.harden vt.vi.(使)变硬; (使)坚固; (使)硬化

例句：The snow hardened until ice was formed.
      雪成冰后变硬了。

(使)变得坚强

例句：His mind hardened as he became used to difficulty.
      他坚强起来了, 因为他已习惯于困难。

5.excessive adj.过度的, 过分的; 极度的

例句：She takes an excessive interest in clothes.
      她过分注重衣着。

      The prices at this hotel are excessive.
      这家旅馆的价钱贵得过分。

6.upright adj.直立的, 垂直的

例句：He stood in an upright position.
      他直直地站着。

7.dizzy adj.引起头晕的

例句：He drove the car at dizzy speed.
      他以令人头晕的速度开车。