这种类型的搬运称为河底滚沙。

This type of transport is called saltation.

youdao

有甚么事烧着，都可以跳进海里，或在沙上滚。

If he was accidentally caught on fire, he can always jump to the water or roll on the sand.

youdao

有甚么事烧着，都可以跳进海里，或在沙上滚。

If he was accidentally caught on fire, he can always jump to the water or roll on the sand.

youdao