pitch in

协力； 做出贡献

Reason it rates: This apartment management firm believes in its people and they return the favor (going so far as to pitch in when pay had to be trimmed).(排名理由：这家公寓管理公司给予员工充分的信任并因此而获得了来自员工的回报(使得该企业在不得不削减开支的时期挺过了难关)。)

So no matter what you perceive yourself to be, be willing and able to pitch in and help out.(所以，不管你觉得自己可以做什么，一定要全心全意，排忧解难。)

Now they will need to know much more about what is going on before they ever pitch in again.(但现在他们首先必须要知道俱乐部到底发生了什么事才行。)

What is that called when you change the fundamental pitch in a piece, going to a different pitch level?(当你改变曲子的音高的时候,这叫什么,改变音高的层级吗)

In a perfect world, you give your pitch in twenty minutes, and you have forty minutes left for discussion.(在一个完美的情况下，你在20分钟内完成你的介绍，就可以留下40分钟时间进行讨论。)

A basic sense of rhythm and pitch is essential in a music teacher.(基本的韵律感和音高感是音乐教师的必备素质。)

The CEO, a technology and design pro who has been at some of the hottest companies in Silicon Valley, stopped his pitch in mid-stream.(其中的首席执行官是一位技术和设计专家，并曾在硅谷多家热门企业任职。)

I decided to pitch in and help as much as possible, and helped get a fewmerges arranged to ensure Intrepid would ship with a relatively current set ofpackages.(我决定着手做，尽可能地帮助，整理一些merges出来以保证8.10推送出相对而言一套好的软件包。)

Universities should pitch in and help schools do better, says Michael Worton, vice-provost of University College London.(伦敦大学学院的副教务长迈克尔·沃顿说，大学应该主动帮助中学进行改善与提高。)

There is a rising pitch in the word "man" and a falling pitch when he says "mankind".(在他说“人”一词时确有升调，而在说“人类”一词时用的却是降调。)

pitch in

verb

1. eat heartily

e.g. The food was placed on the table and the children pitched in

Synonym: dig in

1. 参与；协力
If you pitch in, you join in and help with an activity.

e.g. The agency says international relief agencies also have pitched in...
该机构说国际救援机构也提供了支援。
e.g. Cartoonists have pitched in with their favourites from their own and other hands...
漫画家拿出了他们最喜爱的出自自己和他人之手的作品。