把…扔进;做出贡献;参与;协力;

Simulation and Research Method of Colloidal Pitch in Papermaking Process
造纸过程中胶体树脂特性的模拟研究和评价方法
来源:互联网摘选Footballers in whopping great studded boots walk over the pitch.
脚蹬帅气钉靴的足球运动员走进了球场。
来源:《柯林斯高阶英汉双解学习词典》Local long-haired types and even a few tourists-pitch in to help from time to time.
当地蓄长头发的年青人,甚至还有几个旅游者振臂相助.
来源:词典精选例句It is hard to keep one's concentration up to concert pitch in this sort of scene.
在这种场合下,要使注意力处于高效能状态是很困难的。
来源:词典精选例句Effect of coal pitch in production of anode products used in aluminum reduction
煤沥青在电解铝用阳极制品生产中的作用
来源:互联网摘选A study of surface properties of two types of medium warm coal pitch in China
国内两种中温煤沥青表面性质的初步研究
来源:互联网摘选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。
来源:《牛津高阶英汉双解词典》When they took up a collection for the annual dinner, he promised to pitch in.
当他们为一年一度的聚餐筹款时, 他答应捐款.
来源:互联网摘选There's always some last minute work to do, and everyone has to pitch in.
总有最后一分钟的工作要做, 每个人都要参与其中.
来源:互联网摘选Do you know whose got the longest pitch in the And the widest? It's not Chelsea.
你知道哪家俱乐部的球场最长吗?哪家最宽 吗 ?不是切尔西的.
来源:互联网摘选
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