large

Well, that's long life in small family, and 'Third World' is short life in large family.

简而言之，就是西方家庭寿命长、规模小，而第三世界家庭寿命短、规模大。

There's a consensus of scientists—a large consensus of scientists—who believe that if we haven't completely eliminated greenhouse gases or offset them completely by 2050, effectively we're inviting climate catastrophe.

科学家们达成了一致意见——一大群科学家认为，如果我们到2050年未能完全消除温室气体或将其完全抵消，实际上就是在邀请气候灾难。