“直到你完成作业之后，才能允许你看电视”翻译

直到你完成作业之后，才能允许你看电视
You are allowed to watch TV after you have finished the homework.

这是一个固定的词组 直到 .....才 not ...until

you can not watch tv until you finish your homework.

you are not allowed to watch tv until you finish your homework.

you are not permitted to watch tv until your finish your homework

显然这是一句家长对小孩说的话，当然越简单越好了，而且更趋于口语化，

第一句就非常口语化，简单明了，对于一个小孩子说比较适合。

Until after you finish your homework, you can watch TV！

望采纳，谢谢！

Until you finish your homework
can you be allowed to watch Tv

You are not permitted to watch the telly until you finish your homework.