ring in
1． bring in sb．or sth．from the outside dishonestly or without telling；often hire and introduce under a false name以不正当的手段引进；雇用或介绍冒名顶替的人
No wonder their team beat us；they rang in a professional to pitch for them under the name of Dan Smith．难怪他们队打败了我们，他们雇用了一个冒名丹·史密斯的职业投手替他们投球。
They will surely try to ring in an unqualified delegate．他们肯定想塞进一名不合格的代表进来。
2． come or participate without being invited不请自来
Nobody invited him，but he works in our office and somehow managed to ring in on our party．他在我们办公室工作，但谁也没有邀请他，不知怎么的来参加我们的晚会了。
3．ring a special clock that records the time one begins to work 揿考勤钟记录上班的时间
We have to ring in at the shop before eight o'clock in the morning．我们必须在早上 8点前揿考勤钟记下自己到店里的上班时间。
4． usher in by ringing 鸣钟迎来
The Scots like to ring in the New Year．苏格兰人喜欢鸣钟迎新年。
ring off end a telephone conversation挂断电话
I'd better ring off now—the baby is crying．我现在得挂电话了，孩子在哭。
I'll have to ring off now but I'll ring you back tomorrow．我要挂电话了，我明天再给你去电话。