1. make a dent in 取得進展
We worked all day and still didn't make a dent in this paperwork.
我們工作了一整天，但這項文書作業(yè)仍沒有進展3qf7hfsoI)5I。

2. call on sb. to 要求某人做某事
They also call on them to provide the treatment to developing nations.
他們還要求他們將治療方法分享給發(fā)展中國家VMT)kYpxhk0gWcJZVAm。

3. wear thin 消磨；逐漸消失
His patience began to wear thin during the long wait.
在長期的等待中，他的耐性慢慢消失了+Osv;rW..X7SJRIy。

4. stave off 避免
Though there were failures, too, it seemed as if good management could stave off the tragedy.
雖然也有一些失敗的例子，但是看起來好的管理是可以避免悲劇發(fā)生的wq|0hS61,B(。