So now that we have enough practice drawing Lewis structures let's talk about actually figuring out this formal charge.

那么现在我们已经做了足够多的画路易斯结构的练习,让我们来讨论一下如何得出形式电荷。

麻省理工公开课 - 化学原理课程节选

It's got exercises for you to do so at the end of each chapter, you do have a task to do.

里面为你准备了练习，所以在每章的结尾，你都有任务要完成。

英语写作：技巧 - SpeakingMax英语口语达人

Gunnery practice disturbs the dead, disrupts the ground.

射击练习扰乱了死者，扰乱了地面。

耶鲁公开课 - 现代诗歌课程节选

Indeed the following study that I think confirms the importance of "time-in", time to look inside.

他们研究证实了“练习时间“的重要性，开始内省的时间。

哈佛公开课 - 幸福课课程节选

Then you have a problem set, which is due on that day, your first problem set, and the problem set is up on the website.

你们到时还要交习题册，这是你们的第一次回家练习，习题册已经上传到网上了。

耶鲁公开课 - 金融市场课程节选

But there was an idea that we exercised on the board.

但我们在黑板上练习时使用了一种思想。

哈佛公开课 - 计算机科学课程节选

And just to review a little bit what we did last time, the kind of exercise there--so I think, is this right, I think probably went a little fast last time.

先稍微复习一下上节课的内容,就是上节课中的练习,我认为,可能吧,我认为上节课讲得太快了

耶鲁公开课 - 博弈论课程节选

He couldn't avoid that in this phase of making of his thought of that movie called Chimes at Midnight, that he couldn't go on with the excuse that his make-up kit was lost.

他不能在,为电影《午夜钟声》,练习台词时继续用,化妆箱不见了的托辞。

麻省理工公开课 - 电影哲学课程节选

And you went ahead and worked with the Listening Exercises nine through eleven to engage the musical instruments a bit in those particular exercises, and we have performers here today that are going to, as you can see, demonstrate some of these instruments for us.

你们先前做过,听力练习九至十一题,在这些练习中,你们增长了对乐器的一些认识,今天我们请来了表演者,你们将看到,他们稍候,将为我们在这里演示一些乐器

耶鲁公开课 - 聆听音乐课程节选

He had written a large handful of college exercises and assignments in Latin, and he had obviously made a favorable impression on his teachers, one of whom, at least, he stayed in touch with for years.

他用拉丁文写过大量练习,和作业，很显然，他也给老师留下了良好的印象，他还跟其中的一位老师保持了很多年的联系。

耶鲁公开课 - 弥尔顿课程节选

And so, just a lot of hard work and a lot of time at the golf course in the summer.

所以，夏天时，一直努力练习，在高尔夫球场花了不少时间。

高尔夫俱乐部的回忆 - SpeakingMax英语口语达人

I definitely practiced taking the test

为了考试我还是做了一些练习的。

被学问的自由所迷住 - SpeakingMax英语口语达人

He's playing with Freudian slips. Of course, what he's thinking about all the time is the master-slave game, and so here it comes out, when he's talking about his brother's diving: "He's a master diver. You really have to slave away at it."

他在开Freudian滑倒的玩笑，当然，他一直想的是,主人-奴隶的游戏，当谈到他兄弟的潜水时，他提到了：,“他是个跳水能手，你真得埋头苦干拼命练习这个了“

耶鲁公开课 - 1945年后的美国小说课程节选

It gets popped off the stack as one says and so you know what the values actually as we've hinted at with our brief discussions of forensics they're actually still there.

它从堆中释放了,那些值是什么，就像我们讨论的辩论练习,所暗示的,我们还在那里。

哈佛公开课 - 计算机科学课程节选

Yes, but only the stuff that was assigned, the Listening Exercises that are assigned early on.

有的,不过只要处理好之前布置的东西,做那些听力练习就可以了

耶鲁公开课 - 聆听音乐课程节选

Because that's where you get the time-in.

因为这样你们才有了练习时间。

哈佛公开课 - 幸福课课程节选