一钱不值

zhè ge yī qián bù zhí

这个一钱不值。

This isn't worth a penny.

bǎ mǒu wù kàn de yī qián bù zhí

把某物看得一钱不值

regard something as worthless

tā yòng xiǎo dāo huàn de jiù zhǐ nán zhēn yī qián bù zhí

她用小刀换的旧指南针一钱不值。

That old compass she traded her knife for is worthless.

tā de chéng nuò yī qián bù zhí

他的承诺一钱不值。

His promise isn't worth a damn.

tā men de jiàn yì yī qián bù zhí

他们的建议一钱不值。

Their proposals are all worthless.