老师走进教室时大家都会起立。
Everyone would stand up when the teacher entered the classroom.
老师走进教室时，班长大声喊：“起立！”
When the teacher came into the classroom, our monitor spoke in a loud voice, "Stand up!"
老师走进教室，右手拿着一本书。
The teacher entered the classroom with a book in his right hand.
老师走进教室，胳膊下夹着一本书。
The teacher came into the classroom, with a book under his arm.
老师走进教室，腋下夹着一些书。
The teacher came into the classroom with some books under his arm.
老师走进教室，手里拿着一本书。
上课铃响了，外国老师走进教室。
The bell rang and the foreign teachers came into the classroom.
老师走进教室时，我们都起立。
李老师走进教室，手上拿着些书。
当老师走进教室时，他们就不说话了。
They stopped talking when the teacher came into the classroom.
老师走进教室时，男孩子们停止喧哗。
The boys stopped their clatter when the teacher came into the classroom.
老师走进教室时，男孩子们停止喧哗。
The boys stopped their clatter when the teacher came into the classroom .
当老师走进教室时，他们碰巧在说话。
They happened to talk with each other when the teacher came into the classroom.
老师走进教室，手里拿着书。
门开了，一个老师走进教室。
老师走进教室时，凌峰正在黑板上画马。
Lin Feng was drawing a horse on the blackboard, when the teacher came in the classroom.
但当老师走进教室的时候，她看了我一会。
But when the teacher came into the classroom, she looked at me for a while.
全神贯注地读书，他没注意到老师走进教室。
Deep_in_the_book, _he didn't notice the teacher came into the classroom.
当李老师走进教室时，他们还在不停地说笑。
They kept talking and laughing when Mr Li came into the classroom.
我正在黑板上画一辆小汽车，那时老师走进教室。
I was drawing a car on the blackboard when the teacher came into the classroom.
老师走进教室的时候，他正开始写信给他的父母亲。
When the teacher came into the room, he was starting to write to his parents.
范老师走进教室，手里拿着一把报纸条，让我们莫名其妙。
Fan teachers into the classroom, holding a newspaper article, let us baffled.
早晨，老师走进教室，发现在她的讲台边的地板上有一滩小便。
Teacher walked into class one morning and there was a puddle of pee on the floor beside her desk.
第二天，老师走进教室时发现黑板被涂得乱七八糟，他非常生气的问："谁涂的？
The next day, when the teacher came into the classroom, he found the blackboard daubed. He was very angry and asked, "Who did it?
在教师节，只要老师走进教室，大家都站了起来，大喊一声教师节快乐！
On Teachers Day, as soon as the teacher came into the classroom, we all stood up and shouted Happy Teachers Day!
看见老师走进教室，他停下来开始做作业。(老师进来前，他在做别的事)。
He stopped to do his homework when he saw the teacher coming into the classroom.
第二天，老师走进教室时发现黑板已被乱涂，他非常生气地问：“谁涂的？”
"The next day, when the teacher came into the classroom, he found the blackboard daubed. He was very angry and asked," Who did it?
第二天，老师走进教室时发现黑板已被乱涂，他非常生气地问：“谁涂的？”
The next day, when the teacher came into the classroom, he found the blackboard daubed. He was very angry and asked, "Who did it?"
第二天，老师走进教室时发现黑板已被乱涂，他非常生气地问：“谁涂的？”
The next day, when the teacher came into the classroom, he found the blackboard daubed. He was very angry and asked, "Who did it?"
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