I do know how upset the shop staff can get, but I try to persuade them to keep smiling.

我知道店员会有多生气，但我努力说服他们保持微笑。

youdao

I didn't mean to keep smiling.

我不是刻意地保持微笑。

youdao

"If the business can keep going, so be it," she said, smiling and looking away. "If it can't, I will pack up everything and retire to my hometown."

她微笑着，不时的望着远方说：“如果生意能继续下去，我就接着干；如果不行，那我就收拾东西，回老家。”

youdao

Barely a woman with only a song, I sang to keep you smiling and held you all night long.

NPR: Judy Collins, From Both Sides Now