1、
Business establishments of the city cheerfully welcome groups of students as visitors.
这座城市的商业机构非常高兴地欢迎成群的学生前往参观。
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2、
The gentry in ancient times were eminent, with a wife and many concubines.
古代的贵族们都地位显赫，妻妾成群。
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3、
4、
With his grisly flag flying at the fore! Crowds poured in to see the Red Flag Canal every day.
船头插上吓人的旗帜，这该有多么威风！每天都有成群的人来参观红旗渠。
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5、
Officials were clustered at every open office door, talking excitedly
每个开着门的办公室门口都有官员们三五成群在兴奋地交谈。
《柯林斯高阶英汉双解学习词典》
6、
年复一年，成群的灰鲸畅游1万公里，从阿拉斯加来到南下加州温暖的海洋里交配或生产幼鲸。
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7、
The people flocked to the polling places in greater numbers than ever before in history.
他们成群结队地涌向投票处,人数之众,史无前例.
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