捡(jiǎn) - to pick up (from the ground), to collect in Mandarin

他tā在zài路lù上shang捡jiǎn到dào了le一yí个gè钱qián包bāo。

He found a wallet on the street.

孩hái子zi们men在zài海hǎi边biān捡jiǎn石shí头tou。

The children are collecting pebbles on the beach.

请qǐng把bǎ地dì上shàng的de纸zhǐ捡jiǎn起qǐ来lái。

Please pick the paper up off the floor.

我wǒ们men去qù公gōng园yuán捡jiǎn垃lā圾jī吧ba。

Let's go and pick up litter in the park.

东dōng西xi掉diào了le，我wǒ帮bāng你nǐ捡jiǎn。

You've dropped something. I'll pick it up for you.