left behind

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left behind的用法和样例：

例句

1. If you don't keep up with the times, you'll get left behind.
   如果你跟不上时代，就会被时代甩在后面。
2. If we let the fastest runner make the pace the others will be left behind.
   如果我们让跑得最快的人领头跑，其他人就会跟不上。
3. The rubbish left behind by the Cup Final crowd beggars description.
   观看锦标赛的观众们丢下的废物，实非笔墨所能描述。
4. Come on quick or we'll be left behind.
   快，不然我们就掉队了。