as后面加动词ing形式。
as：
prep.像;如同;作为;当作。
adv.(比较时用)像…一样，如同;(指事情以同样的方式发生)和…一样。
conj.当…时;随着;照…方式;因为;由于。
相关介绍
You need to be able to work as part of a team.
你必须能作为团队的一员去工作。
She used her family's history as a base for her novel.
她以她的家族史作为小说的素材。
My new job is much the same as the old one.
我的新工作和旧工作差不多。
Take as much time as you like.
你想花多少时间就花多少时间。
Research will be needed as a preliminary to taking a decision.
作出决定之前需要进行研究。
