那也一定是一种我完全不懂的本领！

That, too, must be an art of which I understand nothing!

youdao

核物理学是我完全不懂的一门学科。

Nuclear physics is a closed book to me.

youdao

对我来说，就像在听一种完全不懂的语言。

To me, it's just like listening to a language completely unknown.

youdao

Even if you're like me and you don't know a word of either language, they still sound different.

即使你像我一样,完全不懂这两种语言,它们听起来仍然是不一样的

耶鲁公开课 - 心理学导论课程节选

where the accent's totally different and I didn't understand a single word.

那里的口音完全不同，我一个词也听不懂。

语法和语调是关键 - SpeakingMax英语口语达人

College students do not have a science of this at all, they just pour the stuff down their throats with the goal of becoming drunk as fast as they can.

大学生完全不懂喝酒的学问,他们只是把那玩意儿灌入喉咙里,以尽快把自己灌醉为目的

耶鲁公开课 - 古希腊历史简介课程节选