twenty 四级考研

a twenty-foot aerial.

一根20英尺长的天线。

There are twenty children present.

座的有20个孩子。

twenty firemen fought the blaze.

20名消防队员与大火搏斗。

the cession of twenty important towns.

二座重要城镇的割让。

a pen of twenty-five Cheviots.

一圈25只雪福特羊。

a twenty-one-gun salute.

21响的。

count backwards from twenty to ten.

20倒数到10。

his twenty-ninth birthday.

他的29周岁生日。

the country comprises twenty states.

这个国家由20个州组成。

a distance of more than twenty years.

20多年的时间间隔。

they're a good twenty years younger.

他们至少年轻20岁。

the tank held twenty-four gallons.

该罐能装24加仑。

he stood in the shower for twenty minutes.

他阵雨中站了20分钟。

twenty of their ships were sunk or taken.

他们有二艘船只被击沉或被缴获。

Twenty members make a quorum.

二个成员构成法定人数

twenty or thirty years ago.

20或30年前。

twenty of us stood and waited.

我们20个人站那儿等着。

Cube three and you will get twenty-seven.

3自乘三次得27。

This textbook has twenty lessons.

这课本有二课。

fire a salute of twenty -one guns

鸣二一响