掌心

tā de zuǐ jiǎo jǐn bì shǒu zhǎng xīn mō qǐ lái shī lù lù de

他的嘴角紧闭，手掌心摸起来湿漉漉的。

The corners of his mouth drooped, his hands felt clammy.

dǎ zhāo hu de zhèng què fāng fǎ shì jiāng nǐ de shǒu zhǎng xīn cháo xià dì shàng xià chuí zhí huī dòng

打招呼的正确方法是将你的手掌心朝下地上下垂直挥动。

The proper way to wave is to move your hand up and down vertically with your palm facing down.

nǐ táo bù chū wǒ de shǒu zhǎng xīn

你逃不出我的手掌心。

I know you like the back of my hand.