land in:指到达某个地方,eg:We expect to be landing in Oslo in about fifty minutes.land on 也指到达某个地方,但它就含有在什么上面的意思,如 In 1969,the first men landed on the moon.其后接In或on 需视情况而定.关于land in:land somebody in trouble/hospital/court etc可指使某人陷入困境.land on 也可指某种麻烦的突然发生,如Just when I thought my problems were over,this letter landed on my desk.具体是In 或On得视情况而定