1. play the role of 扮演……角色
We all play the role of victim occasionally, but for some, it has turned into a way of life.
我们偶尔都会扮演受害者的角色，但对一些人来说，它已经成了他们生活的方式-X9Ldy_sM!。

2. it's no secret that 不是秘密
Anyway, it's no secret that he owes a lot of money to the bank.
不管怎么说，他欠银行很多钱的事已不是什么秘密了E9Y-8!EXtHiV。

3. remove the barriers 移除障碍
This study is to remove the barriers posed by lexical gaps and bridge lexical gaps between English and Chinese.
本文旨在消除词汇空缺所引起的交流障碍，架起英汉语沟通的桥梁Qife=#m&pI;xdC。

4. live up to one's potential 发挥潜力
He is hardly the first NBA player to fail to live up to his potential.
他并不是第一个没有发挥出自己的潜能的NBA球员TzOq4.Fr_^。