切莫

qiè mò dān dú qián qù

切莫单独前去

be sure not to go alone

qiè mò qīng xìn yáo yán

切莫轻信谣言

never believe rumours

qiè mò jiāng chē tíng zài rù kǒu chù

切莫将车停在入口处。

Make sure you park your car clear of the entrance.

qiè mò lí kāi cǐ dì

切莫离开此地。

On no account should you leave here.