一窍不通

wǒ duì shù xué yī qiào bù tōng

我对数学一窍不通。

I don't know the first thing about mathematics.

duì wén xué yī qiào bù tōng

对文学一窍不通

know nothing about literature

wǒ shì wài háng duì gōng chéng jì shù yī qiào bù tōng

我是外行，对工程技术一窍不通。

I am a layman, knowing nothing when it comes to engineering and technology.

wǒ duì yuán zǐ hé wù lǐ xué yī qiào bù tōng

我对原子核物理学一窍不通。

I'm out of my depth when it comes to nuclear physics.

tā shí jì shang duì yì shù yī qiào bù tōng

她实际上对艺术一窍不通。

She knows nothing about art really.

wǒ děi chéng rèn duì diàn nǎo yī qiào bù tōng

我得承认对电脑一窍不通。

I must confess to knowing nothing about computers.