我国的毛笔历史悠久,品种非常丰富,分为((____) )、((____) )和( (____))三类。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
— ___________________
— Once or twice a week.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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