你们离开教室前应该把它打扫干净。
请确保在你离开教室前关掉所有的灯。
Please make sure that all the lights are closed before you leave the classroom.
在离开教室前，我关上了所有的窗户。
我看见许多鸟在教室前飞过。
在你离开教室前要确保关掉所有的灯。
Make sure you turn off all the lights before you leave the classroom.
在你离开教室前请关好窗户。
老师经常提醒我们在离开教室前要关灯。
Teacher often reminds us to turn off the lights before we leave the classroom.
孩子进教室前要先排队。
Before the children would come into class they would line up.
离开教室前，请把灯关掉。
在离开教室前，请确认一下所有的灯都关了。
Before leaving the classroom, please make sure that all the lights are off.
他每天离开教室前都要确保所有的窗户都关了。
He makes sure that all the Windows are closed before he leaves every day.
有时，她进教室前要从口袋里取出镜子来照一下。
Sometimes, she would fish out a mirror from his pocket and look in it.
今天值日的同学要在老师到教室前擦黑板和准备粉笔。
Students who are on duty today should erase the blackboard and prepare some chalk before the teachers come into the classroom.
借教室前没有进行详细 的考察，造成布置失当和时间的紧凑！
No classroom ago by a detailed inspection, resulting layout misconduct and the tight time!
“好的，”朱丝说。她走到教室前说：“安静点，同学们，我是新老师，现在下课。” ”
"All right, " agrees Josie. She comes to the front of the classroom and says, "Quiet, everyone. I am a new teacher, and I say class dismissed. "
为保证广大会员有一个宁静的习练环境，请勿在场馆内大声喧哗，进入教室前请主动关闭手机；
In order to guarantee all the members have a quiet practice environment, you must keep quiet in Venues. Close your phones before you come into the class.
本文介绍利用投影仪和透明胶片在大教室前的屏幕上动态演示干涉、偏振等波动光学现象及其规律的一些方法。
Transparent film projector is used to demonstrate interference, polarization and other wave optical phenomena and laws on large screen in big lecture halls.
这是十年前的你，还是曾经那个女孩。我坐在七年级的教室里，凝视着外面。
This is you from ten years ago, the same girl that you used to be. I am sitting in my grade seven classroom, staring outside.
当我走进教室的时候，迈克尔·彼得森已经坐在迈克尔·罗杰斯的桌子前，正翻着他的情人节礼物盒！
When I got to the classroom, there was Michael Peterson, at Michael Rogers's desk, digging in his box of valentines!
一天早上上课前我的物理老师走到我的寄物柜前，让我去他教室。
One morning my physics teacher walked up to me at my locker before school and asked me to step inside his classroom.
整个走廊里几乎没什么人乐，我站在法语教室的前。
Halls are almost empty. I'm standing in front of my French classroom. "Clare."
铃响前十分钟我提前到了教室，最早的那批学生正陆陆续续进来。
I arrived in my classroom ten minutes before the bell rang, just as the first of my students trickled in.
考试前，我们几个赶忙跑到书店把书卖了，随后，我们坐在教室里等着考试。
Before class, several of us dashed over to the store and sold our books.
看着这个我两个星期前在教室做的巧克力果馅饼使我很开心。
Looking at the chocolate tart we made in class 2 weeks ago makes me happy.
登出前应清理电脑桌面上的档案，切勿在教室之电脑中储存重要的档案。
Clear the desktop before you log out. Do not save important files in the computers.
他在早上洗脸前要先自拍10张，每一个小时会偷偷溜出教室去自拍三次。
He would take 10 photos of himself before he washed and would sneak out of class three times every hour.
六年前，我刚刚转到这所学校，看到了教学楼，看到了教室，看到了桌椅。
Six years ago, I just transferred to this school, saw a teaching building, see the classroom, see the desks and chairs.
六年前，我刚刚转到这所学校，看到了教学楼，看到了教室，看到了桌椅。
Six years ago, I just transferred to this school, saw a teaching building, see the classroom, see the desks and chairs.
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