apparent obvious有何區別

1.牛津將apparent解釋為obvious，說明兩個詞沒本質區別都是，easy to see，understand etc，美國傳統詞典更是，用 Synonym同意字來說這兩個詞，但劍橋的解釋則認為apparent是able to see，而obvious是easy to see，這可以看出apparent沒後者明顯。

例如：

For no apparent reason the man opposite suddenly screamed.(固定用法）

They have a small child so for obvious reasons they need money.（固定）

2.詞義沒區別，但固定用法有點區別：

an apparent problem壹個答案明顯的問題

an obvious solution壹個明顯的解決辦法

It's obvious/apparent that..很明顯

It's becoming apparent...變的明顯

apparent 不做賓語，而obvious 有with obvious annoyance

The reasons are not immediately obvious.(no apparent)