Must we clean the classroom at once?
我们必须马上打扫教室吗？
When they get to school, they have to clean the classroom.
他们到达学校后需要打扫教室。
I come into our classroom. The Windows are very new and clean. My classmates and I are interested in the new things in the classroom.
走进教室，窗户是新的并且还很干净。我和我的同学都对教室里面的东西产生了浓厚的兴趣。
Once the bell for class rings, we clean up our dresses, wipe off sweat, go back to the classroom and wait for the teacher.
上课铃一响，我们就赶紧把地板扫干净，把桌子擦干净，然后赶紧回到座位上去等待老师。
At school, we have to clean the classroom, but we don't have to wear a uniform.
在学校，我们不得不打扫教室，但我们并不是一定要穿校服。
My classroom is on the three floor, the room is bright and spacious, clean and dry by the students.
我的教室在三号楼，这个教室明亮宽敞，被同学们打扫得干干干净。
The children cooperated with their teachers in keeping the classroom clean.
孩子们和老师一起保持教室整洁。
Strength of the students came to outside of the classroom to take the mop pool, give off something I spit on the ground to clean, and rub the ground bright as day.
力气大的同学则到教室外面的水池来拿拖把，把我在地上吐得东西给脱了干净，并且把地面擦得亮如白昼。
In the discipline under the premise of harmony is also reflected in the harmonious relationship between teachers and students, rich learning environment, clean classroom environment.
在遵守纪律的前提下，和谐还体现在融洽的师生关系、浓郁的学习氛围、整洁的教室环境等方面。
Clean classroom does not destroy the natural environment. We should stop off branches, no littering and other bad behaviors.
教室必须及时打扫与清理，不破坏自然环境，制止折树枝、乱扔垃圾等行为。
Courses include classroom and shop experience with a variety of aircraft, learning how to dismantle, clean, and assess the stress fatigue of aircraft parts.
课程包括在拥有多种航空器的训练室里实践的经验，学习如何拆卸，清洁，和对航空器零件的压力疲劳进行评估。
In the morning, we got to the school earlier than usual. We made the classroom very clean and beautiful. On the back blackboard, we wrote "HAPPY TEACHERS' DAY".
那天早晨我们到校比平时早，到校后就打扫教室，把教室布置得漂漂亮亮，还在教室后黑板上写了“教师节愉快”几个字。
To maintain an orderly learning environment, faculty members shall guide the students to keep the classroom clean and remind the students to keep the noise level down during recess.
为保证正常教学的秩序，教师应教育学生爱护公物、保持教室整洁及在课间休息时不大声喧哗。
To maintain an orderly learning environment, faculty members shall guide the students to keep the classroom clean and remind the students to keep the noise level down during recess.
为保证正常教学的秩序，教师应教育学生爱护公物、保持教室整洁及在课间休息时不大声喧哗。
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