proficiency
n[U]
~ (in sth/doing sth)being proficient (in sth) 精通; 熟练
a test of proficiency (in English) (英语)水平测试
show proficiency in operating a switchboard 操作配电板十分熟练.
They are my only comfort. When you take those away from me, you also take my life.
它们是我唯一的安慰。你们没收了我的财物,也就是要了我的命。
Here are some more tips on becoming a good listener. First, take turns to listen. Don't all try to speak at the same time when you are in a group. Listen without interrupting, and stop others from interrupting. Then it will be someone else's turn. That wa