At the end of the class, the lecturer would usually leave by a small door near the blackboards, while the class would leave through the large doors at the back of the hall.
通常讲完课，讲师都是从黑板边的一个小门离开，而同学门都是走教室后面的大门。
Blackboard Anyone who has ever been to school would have seen many blackboards big and small on which characters in different colors of chalk are written.
谁曾经被学校的黑板任何会见过许多大黑板和小字符在不同颜色的粉笔写的。
Anyone who has ever been to school would have seen many blackboards big and small on which characters in different colors of chalk are written.
任何到过学校的人，总见过许多大大小小的，上面写着各种颜色粉笔字的黑板。
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