┌steer clear of=avoid避开

└steer掌握方向

┌install装(空调、软件)

├fit安上

└fix修理后安装

l without delay没有耽误

└so many delays耽误许多

┌at Oxford用at不是in

└at Greenwich格林威志

l serve as被用作

She serves as a teacher.

This book serves as a weapon.

The sound made by bird can serve as language.

The picture serves as an impressive reminder of my miserable(苦难的) childhood.

l 标志…的开始…的结束

It marked the beginning of…and the end of…

It marked the beginning of a new era.

l take the lead

┌It seems that

├It seems certain that

└看起来确实无疑的

I will take bus home.

Road home.回家的路

┌Wish you good luck.

└a lot of bad luck

l be struck by被击中

┌heavy storm雨雪都用此表大

├wild wind狂风

└strong wind强风