请输入您要查询的英文单词：
单词
not know the first thing about sth
释义
not know the first thing about
sth
to know nothing about asubject
对…一无所知
I'mafraidI don't know the first thing aboutcarengines.
恐怕我对汽车发动机一无所知。
#https://dictionary.cambridge.org//dictionary/english-chinese-simplified/not-know-the-first-thing-about-sth##