摆摊 

Pinyin: bǎi tān 
Meaning：Set up a stall
Sentence:  他父母在农贸市场摆摊儿卖水果。His parents are fruit peddlers in a farm produce market.

More:

摆：

Pinyin: bǎi
Meaning: pendulum; to place
Radical: 扌
Stokes: 13
Traditional: 擺
Common words/Phrase:
摆脱 [bǎi tuō] 【break away from】
摆动 [bǎi dòng] 【swing】
摆设 [bǎi shè] 【furnish and decorate】
摆渡 [bǎi dù] 【ferry】
摆布 [bǎi bu] 【manipulate】

摊：

Pinyin: tān 
Meaning: Spread out; vendor’s stand
Radical: 扌
Stokes: 13
Traditional: 攤
Common words/Phrase:
摊位 [tān wèi] 【stand; booth】
摊贩 [tān fàn] 【stall keeper】
摊牌 [tān pái] 【show one’s cards】
摊子 [tān zi] 【booth; stall】
摊开 [tān kāi] 【lay open】