在水上

They glided the boat over the water.

他们船在上滑行。

They made a raft and set it afloat.

他们做了一个筏子，浮在上。

Wood floats on water.

木头浮在上。

The boy was floating his boat.

那男孩让他的小船在上着。

Since is the life in aquatic, also lets us be suitable the water cause natural subcrust current to get down.

既是生活在上，且让我们顺着的因地流下去。