| 例句 |
Mineral oils are used to lubricate machinery.矿物油被用来润滑机器。Franklin's task was to lubricate the discussions with the French.富兰克林的任务是促使与法国方面的会谈顺畅进行。The function of the pericardium is to protect and lubricate the heart.心包的作用是保护和润滑心脏。A little bit of oil will help lubricate the chain.只要一点润滑油就可以使链子转动顺畅。In drilling an oil well, mud is used to lubricate the cutting bit.钻油井的时候，泥浆被用来润滑钻头。Songs and laughter lubricate the biological clock.歌声笑语可使人体生物钟顺畅运转。 |