形容词
中文翻译：Unknown
同义词：
['medium-sized', 'moderately sized', 'average-sized']
例句：
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1. Themiddle-sized company is expected to grow rapidly in the next few years.
这家中等规模的公司预计在未来几年将迅速增长。
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2.The room is not large enough for a middle-sized person.
这个房间不够大，不适合一个中等身材的人。
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3.The new product is designed for the middle-sized market.
这款新产品是为中等规模市场设计的。