drift for knocking out of tubes

例句：

1. 1. The boat drifted aimlessly in the sea.
   这艘船在海上漫无目的地飘荡。
2. 2. The leaves of the tree were drifting down to the ground.
   树叶在风中飘落。
3. 3. She drifted away from her friends and family.
   她离开了朋友和家人。