elsewhere: adv.在别处，往别处，在另外一处。 You will have to look elsewhere for an an-swer. 你一定要到别处去寻求答案。
seldom: adv.不常；很少；难得…。 He seldom, if ever, goes out.＝ He seldom or never goes out. 他很少出门。 It is seldom that a man lives to be a hundred years old. 人生百岁古来稀。 not seldom 往往；时常。 seldom or never＝very s
It is famous for its botanical diversity sustained by its freshwater resources . among them are many rare trees seldom seen elsewhere in china ：位于三亚市北部，岛上因有淡水资源，所以植物种类繁多，当中更有许多是珍贵树种，在当地甚为罕见。
