没有人能学好一门外语,除非他学习很用功的翻译：No one can learn a foreign language unless he studies hard 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

No one can learn a foreign language, unless he is very hard to learn

No one can learn a foreign language unless he studies hard

Nobody can learn a foreign language, only if he studies studies hard very much

No one can learn a language, unless he was very diligent study

No one can learn a foreign language unless he studies hard