Going down to the sea in ships is easy enough with gravity's help, but at high tide the ascent upon arrival gives the legs a good mountain work out.

借助重力，在船中沿海而下是容易的；但在满潮时，到达后潮的升涨使双脚难于离开？

youdao

A better method is to take the waste in ships far out to sea and let the wind and waves break it down.

较好的办法是用船把废弃物运到海洋深处，让风浪把它们分化处理掉。

youdao

A better method is to take the waste far out to sea in ships, where the wind and waves break it down.

比较好的办法是把粪便用船运到很远的海上，那里的风浪会把它分解掉。

youdao