Unit 102.I have no idea.

102.我不清楚。

A:What's wrong with  Debbie today?  She seems upset about something.

甲：黛比今天怎么啦？她似乎有些心烦意乱。

B:I have no idea. Maybe she had a fight with her husband.

乙：我不清楚。她可能和她先生吵架了吧。

类似用语

I don't know.
我不知道。

I don't have a clue.
我毫无线索。

I haven't the slightest/foggiest idea.
我一点都不清楚。

百宝箱

句型“人+ be/feel upset about+事”表示“某人对某事感到心烦意乱”，此处upset是过去分词作形容词，表示“心情难过的，沮丧低落的”。upset亦可作动词用，表示“使某人心情不悦”，其动词的三种时态同原形。

Tommy upset Jenny by saying she was fat.
（汤米说珍妮胖，令珍妮不悦。）