1 sentence for 叫嚷 (jiào​rǎng — complain loudly)

1. 那些顾客正对着店员叫嚷，抱怨服务太差。

   nà​xiē gù​kè zhèng duì​zhe diàn​yuán jiào​rǎng, bào​yuàn fú​wù tài chà.

   Those customers are shouting at the clerk, complaining about the poor service.

   Source: Dong Chinese Dictionary