The flight attendant stayed calm while a brattish passenger kept kicking the seat ahead.

一名乘客任性地一直踢前座，空服員仍保持冷靜。

Our customer service team was trained to handle brattish behavior from young shoppers politely.

我們的客服團隊受過訓練，能有禮地應對小顧客頑皮任性的行為。

During the meeting, the manager warned that brattish complaints about schedules would not change anything.

會議中，經理警告說，像小孩般任性地抱怨班表不會改變任何事。