中英释义：
双语例句
它们使得交通更拥挤。
They made the traffic heavier.
重点词汇
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拥挤
crowded; congested; cramped; jam-packed; packed; jammed; crammed; teeming; swarming; dense; overflowing; crowd; cram; pack; throng; jam; congest; squeeze; jostle; swarm; cluster; flock; pile; congestion; crush; in a crowded manner; at close quarters; crowdedly