ring in .  bring in somebody or something 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。

ring in .  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。

ring in . ring a special clock that records the time one begins to work 按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点前按考勤钟记下自己到店里的上班时间。

ring in .  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。

ring out .  ring a special clock that records the time you leave work 按考勤钟记录下班的时间

Charles can't leave early in his new job； he has to ring out．查尔斯在新的工作岗位上不能早退，因为他要按考勤钟记录他下班的时间。

ring out . usher or lead out by ringing鸣钟送出

Firecrackers rang the Old Year out and the New Year in．爆竹声送走了旧岁，迎来了新年。

Ring out the old， ring in the new！送旧迎新！

ring out . sound out loud and clear发出响亮、清晰的响声

Cheers rang out from the assembly hall．大礼堂里响起了欢呼声。

His voice rings out across the whole school．他的声音响彻整个学校。

ring up .  call up . 打电话

Have you rung up your mother recently? 你最近给母亲打电话了吗?

We rang up Henry but got no reply．我们给亨利去过电话，但没人接。

He rang me up immediately after his，arrival．他到达后立刻给我来了电话。

ring up . add and record on a cash register用收款机结算

The supermarket clerk rang up Mrs．Smith's purchases and told her she owed thirty-three dollars．超级市场的职员在收款机上结算了史密斯太太购买的东西，告诉她需付三十三美元。

ring up .  give signal for raising（the curtain）鸣铃启幕

We rang up the curtain on a new show．我们启幕演出了一个新节目。

rip off . steal；rob偷窃；抢劫

He was caught ripping off books from the library．那个家伙在图书馆偷书时被抓住了。

rip off . tear off with an effort用力撕掉

He ripped the paper off．他用力把纸撕掉。

rip off . defraud；exploit诈骗；敲诈；剥削

I don't shop at that small store any more；they're known for ripping off the customers whenever they get a chance．我再也不在那家小店买东西了，他们一有机会就敲诈顾客已经出了名了。

We are really ripped off by the baker who gave us zero nutritional value for our money．我们确实上了那家面包商的当，他用毫无营养价值的东西来骗我们的钱。

rip out . utter angrily， as with an oath or exclamation 愤然说出；诅咒

He has a hot temper and is likely to rip out with unseemly language；you would do well not to say anything at all．他脾气急躁，很可能破口说出不体面的话，你最好什么都不说。

rip out . tear out with an effort 撕碎；拆除

He ripped out the pockets of the coat．他撕掉了上衣的口袋。

The criminals have ripped the telephone wires out，so we can't call the police．罪犯把电话线拉断了，因此，我们无法给警察打电话。

 rip up .  bring to recollection； recall回忆；追想

He ripped up all he had done in the past．他回忆自己过去所做的一切。

 rip up .  tear up with an effort；vigorously renounce or tear up,（a treaty，）撕毁（条约等）

He ripped up the documents．他把文件撕碎了。

Whoever rips up the agreement will be condemned．不管谁撕毁协议都要受到谴责。

rise in somebody's opinion    .  improve or go up in somebody  's estimation 获得某人的重视或好评

She has risen in my opinion．我对她的评价有所提高。

rise in the world . prosper；attain wealth or honor 发迹；功成名就；飞黄腾达

He's honest and diligent；I 'm sure he'll rise in the world．他诚实勤奋，我相信他会有出息的。

rise to the occasion . prove to be adequate for the purpose or situation 证明能做某事或应付某局面

When the invited speaker did not arrive，the chairman rose to the occasion and gave an excellent unprepared speech．当被邀请的演讲者没有到时，主席随机应变，作了一个非常出色的即席演讲。

rob…of .  take something from somebody unlawfully 抢劫（某人）

They knocked him down and robbed him of his watch．他们把他打倒在地，然后抢走了他的手表。

rob…of .  deprive somebody  of 剥夺；使…丧失

They robbed the people of all liberty of thought．他们剥夺了人民的一切思想自由。