我的母亲会帮我做功课。
你该做功课了。
他发现人们在制作炮管时，会产生大量的热，同时有大量的做功。
He observed when people were machining cannon barrels, a lot of heat was generated, and there was a lot of work done.
为了解决这个问题，科学家建议学生应该少做功课，多花点时间睡觉。
To solve this problem, scientists advise that students should get less schoolwork and more time to sleep.
你的父母曾经帮助过你做功课吗？
该做功课时，你老是跑出去溜滑板！
You're always out skateboarding when you should be doing homework!
妈妈，我今晚必须做功课吗？
首先，对左手边的系统做功。
First of all, work is being done to the system on the left-hand side.
为了通过考试，这个孩子正在认真地做功课。
The kid is doing his lessons carefully in order to pass the test.
她正在做功课。
母亲几乎总是在家里，随时准备和孩子们一起玩、给他们念书、辅导他们做功课。
Mother was almost at home, ready to play with the children, and read to them, and help them do their home-lessons.
“那我再试一次。”乔治坚定地说；把他的半成品风筝扔到一边，再次转身进了屋，很快弯下腰来认真做功课了。
"Then I will try again," said George, in a decided tone; and, flinging aside his half-made kite, he turned and re-entered the house, and was soon bending in earnest attention over his lesson.
在我们周围总是有能量在做功，不管我们是否察觉到它。
There is energy working around us all the time whether we are aware of it or not.
重要的是，这只是对做功来讲的。
做功课研究一下上面提到的产品。
很明显你会很累，但是没有做功。
So it's clear that you can get very tired without having done any work.
她总是让我做功课、复习、看书等。
She always asks me to do my homework, revise my lessons and read books.
关于做功，我们有两个公式。
康妮：我和弟弟晚上刷碗，然后做功课。
Connie: My brother and I did the dishes in the evening. Then we did our homework.
能看到什么？，可以发现做功的格林公式。
What have we seen? Well, we have seen Green's theorem for work.
可我怕没时间做功课了。
Nick:But I'm afraid there will be no time for me to finish my homework.
为了求做功，我们要计算线积分。
有一种试验叫做功能核磁共振成像。
An experiment called functional magnetic resonance imaging as illustrated here.
系统对环境做功，因此符号是负的。
So, the system does work on the surroundings, hence the minus sign.
为什么它没有做功？
这名小学生认真做功课。
法向力不做功吗？
请记得做功的例子，可以用格林公式的。
他们住在学校，组织人们和家长做功课。
They live here and they organize the people and the parents to do tasks.
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