flap about (或 around)

• • (上下前后地)摆动；飘动；拍动：

    The flag was flapping about in the wind.

    旗帜在风中飘动。

  • [口语]多余地发愁：

    Do stop flapping about,we'll get the job done in time.

    不用瞎操心，我们会及时完成工作的。