讲解：
manipulate (sb into sth / into doing sth)
(暗中)控制,操纵,影响:
They managed to manipulate us into agreeing to help.
他们总算促使我们答应提供帮助了。

demonstrate sth (to sb)
证明；证实；论证；说明:
Let me demonstrate to you some of the difficulties we are facing.
我来向你说明一下我们面临的一些困难。

by / in virtue of sth
凭藉；依靠；由于；因为:
She got the job by virtue of her greater experience.
她由于经验较为丰富而得到了那份工作。

enlist (sb) (in / into / for sth) | ~ (sb) (as sth)
(使)入伍；征募；从军
They both enlisted in 1915.
他俩都是 1915 年入伍的。

transform sth
使改变外观(或性质)；使改观:
A new colour scheme will transform your bedroom.
新的色彩调配将使你的卧室焕然一新。

forego sth for sth/to do sth
放弃,弃绝(想做的事或想得之物):
No one was prepared to forgo their lunch hour to attend the meeting.
谁都不愿意放弃午餐时间出席会议。

open (to sth)
易受损害；脆弱
The system is open to abuse.
这项制度容易被滥用