砂砾

zài huā pén dǐ bù fàng yī céng xì shā lì lái jìn xíng pái shuǐ

在花盆底部放一层细砂砾，来进行排水。

Put a layer of fine gravel into the bottom of the plant pot for drainage.

tā zài shā lì zhōng bā zhǎo zhe nà zhī zhǐ huán

他在砂砾中扒找着那只指环。

He was scrabbling about on the gravel searching for the ring.