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第九课
1、nine forty───940
2、nine up───九岁以上
3、micro lesson───微课
4、nine nine nine nine───9999
5、archery lesson───射箭课
6、lesson───vt.教训;上课;n.教训;课
7、force lesson───武力课
8、violin lesson───小提琴课
9、nine───n.(Nine)人名;(塞)尼内;adj.九的,九个的;num.九;九个;n.九,九个
1、Rescuers got a stark lesson after Utah's Crandall Canyon mine collapse in 2007, when nine people died. Only one mobile robot made it down a borehole and onto the mine's floor.───在2007年犹他州的Crandall Canyon矿井崩塌事故中,机器人营救员们就遇到了这样的尴尬:在这起有九人丧生的事故中,仅有一台移动机器人完成了地底钻洞和矿井登录的工作。
2、The father let his son have a rest before moving to Lesson Nine.───那位爸爸让儿子在进行第九课之前休息休息。
3、In lesson number nine, our next less than, I'm going to talk about leaving work at the end of the day.───在第九课中,我们的下一个课中,我将在一天结束时离开工作的有关情况。