我们之前在课上讨论过休谟，对吧？
在课上讨论取得成功的最佳方式可以向老师展示你对课堂的关心。
Discussing the best ways to succeed in class shows your teacher you care about the class.
我们之前在课上讨论过休谟。
这样我可以放映一些图片，给你们在课上和回家后看。
This will allow me to project images in class and for you to look at them later at home.
马修，我希望你能在周三的课上谈谈这一天文学单元。
Mathew, I'd love for you to talk about this astronomy unit in class on Wednesday.
我们在生物课上解剖了一只青蛙。
请听保护生物课上的部分内容。
Listen to part of a lecture in a Conservation Biology class.
美术课上，他们一起画画。
格里塔在美术课上拿着颜料。
我们知道在他的课上我们没有学到很多。
我们经常在功课上互相帮助。
爷爷在胡老师的课上没有学到很多东西。
与此同时，莉莉在芭蕾舞课上也很吃力。
我的父母对我在功课上的进步很满意。
虽然我画画很好，但我在美术课上不是最厉害的。
Although I was good at drawing, I wasn't the best in my art class.
在美国，许多孩子仍然在美术课上学习扎染。
Many children in the US still learn tie-dye in their art classes.
怀特老师经常让我们在她的英语课上讲有趣的故事。
Miss White often has us tell interesting stories in her English class.
在体育课上，我们通常打篮球，这是我最喜欢的运动。
In PE we usually play basketball, which is my favorite sport.
他在功课上总是粗心大意，所以他老是犯同样的错误。
He is always careless about his schoolwork, so he keeps making the same mistakes.
这个可怜的男孩偷溜到他的座位上，又把目光投到功课上。
The poor boy stole off to his seat, and bent his eyes again upon his lesson.
你知道为什么我们上课上到一半时会感到困倦吗？
Do you know the reason why we feel tired in the middle of a class?
在今天的英语课上，我的同学丹尼尔扮作电子狗霍博。
My classmate Daniel dressed up as the e-dog Hobo in today's English class.
鼓励的话语会让那些考试不及格的学生在功课上更加努力。
Encouraging words make students who can't pass the exam work harder at lessons.
有一天，我在体育课上和一个同学打乒乓球。
One day, I was playing ping-pong with a classmate in my P.E. class.
一天，在布朗老师的美术课上，我像往常一样在玩颜料。
One day, I was playing with some paint as usual in Ms. Brown's art lesson.
为了保证自己在体育课上的安全，你应该在锻炼前做伸展运动。
To keep yourself safe in the P.E. class, you are supposed to stretch before exercising.
我本来想在今天的历史课上和你们分享一些报纸中的内容。
I had hoped to share something in the paper with you in today's history class.
在数学课上，如果答案小于10，他可以竖起手指，但那没什么意思。
In math class he could hold up fingers if the answer was less than 10, but that wasn't fun.
然而到了八年级的科学课上，无论我多么努力都好像听不懂。
When it came to the eighth grade science, however, I couldn't seem to understand it no matter how hard I tried.
你注意到在张老师的课上，学生们被问了几个为什么的问题吗？
Did you notice the students were asked a few why questions in Mr.Zhang's class?
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