1.Many communities worldwide depend on the ocean for their livelihoods.
depend on依赖
The Oxfam shops depend on regular supplies of saleable items.
乐施商店靠出售一些人们定期捐赠的适销物品维持经营 。
2.She and her family make a living by fishing.
make a living赚钱过活;营生
He is prepared to make a living by accepting any remunerative chore.
为了生计,他准备接受任何有酬报的杂活 。