胆小的

tā shì gè dǎn xiǎo de rén bù yào gěi tā zhè me jiān nán de gōng zuò

他是个胆小的人，不要给他这么艰难的工作。

He is a yellow-bellied guy so don't send him on such a tough assignment!

zhè zhǒng dǎn xiǎo de xiǎo dòng wù shòu dào wēi xié jiù huì fàng chū yī gǔ cì bí de qì wèi

这种胆小的小动物受到威胁就会放出一股刺鼻的气味。

These timid little creatures exude a pungent smell when threatened.