Because, if you are in a boat, on a creek, without a paddle to help move or turn, you can't go forward.

因为如果你在船上，没有船桨帮你前进或是改变方向，你没法向前。

youdao

Because, if you are in a boat, on a creek, without a paddle to help move or turn, you can't go forward.

因为如果你在船上，没有船桨帮你前进或是改变方向，你没法向前。

youdao