"by sea"is another way of _(say)"by ship" what are the _(different) between the two

问题描述:

"by sea"is another way of _(say)"by ship" what are the _(different) between the two
what are the _(different) between the two means of transportation?

“by sea" is another way of saying (say)"by ship"
what are the differences (different) between the two means of transportation?