He must be a doctor, isn't he?

他肯定是医生，是吗？

youdao

He must be a doctor.

他一定是个大夫。

youdao

He must be a doctor, for he is wearing the white coat.

他一定是医生，因为他穿着白大褂呢。

youdao

Certainly, if a doctor has to practice medicine knowing he must be able to sway a jury in the event something goes awry, he ultimately will end up ordering any and all diagnostics he can despite knowing through years of experience one is really only necessary.

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