"一旦“的英语怎么说,两个词

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"一旦“的英语怎么说,两个词
"一旦“的英语怎么说,两个词

"一旦“的英语怎么说,两个词
once
in a single day
in case

once
Once you get into a bad habit, you'll find it hard to get out of it.
一旦染上坏习惯,想改掉就难了。

in case 万一,一旦

in case

Once

once