Question

be covered in 和 be covered on有什么不同？

Answer 1

be covered in/with 被……覆盖
如：She wore so much jewellery that she seemed to be covered in gold.
她戴了那么多首饰，看上去象是包在金子里似的。

be covered on 可以表示范围，也可以表示电视台的直播。如：
What’s going to be covered on the test?
考试的范围是什么？

Next season's live horse racing will not be covered on RTHK.
香港电台将不会直播下季的赛马。

Answer 2

1.be covered in 是用……填满，表动作

2.be covered with 是被……覆盖
盖满，覆满
充满（羞惭，慌乱等），不胜...
In winter,the earth is covered with snow.
也有充满的意思（无形的，例感情等）

Answer 3

好像没见过be covered on这种用法啊.
似乎应该是:be covered with
be covered in 是用……填满，表动作
be covered with 是被……覆盖,表现象

Answer 4

in表被覆盖在什么里
on表被覆盖在什么上