To move up and down repeatedly, often in short, quick motions; to fluctuate within a certain range.
湖面上的浮标随着微风和水波上下浮动。
The buoy on the lake bobbed up and down with the breeze and water ripples.
Era:
Modern
Frequency:
Next Idiom
To move up and down repeatedly, often in short, quick motions; to fluctuate within a certain range.
Era:
Modern
Frequency: