那就是我的建议，即：这个男孩得努力学习。

That's my suggestion that the boy should study hard.

youdao

我建议大家在高中生活里努力学习和锻炼一个强壮的身体。只有用这种方式你才能取得更大的成就和收获一个更好的未来。

I suggest you studying hard and building a strong body during your high school lives. Only in this way can you achieve more and have a better future.

youdao

我建议你要努力学习。

I suggested that you (should) study hard.

youdao

and just, you know, work hard and study, do your homework, eat well too, I'm sure that helps

所以，我的建议是，努力学习，认真完成作业，
同时也好好吃饭，这真的很重要哦。

如果是在考虑留学 - SpeakingMax英语口语达人