词典释义：
双语例句
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Oh, watch out! We just avoided a major collision with that biker.
啊, 小心! 刚才我们差点儿和那个骑自行车的撞了个正着.
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This was the second major collision this summer for the Navy's 7th Fleet.
这也是今年夏天第七舰队发生的第二次严重相撞事故。