lump down

例句：

1. 1. The heavy rain caused the river to lup down, leaving only a narrow channel behind.
   大雨导致河水下沉，只剩下一条狭窄的河道。
2. 2. She decided to lup down her belongings and move into a smaller apartment.
   她决定把东西收拾好，搬到一个更小的公寓里去。
3. 3. As the sun set, the trees began to lup down, casting long shadows across the field.
   随着太阳落山，树木开始下沉，在田野上投下长长的影子。