underground什麼意思
under，在下面、下。以under作為前綴的單詞還有：underlie, underwear, understand, etc.
ground，地面。
underground，地下的：
作形容詞意思是在地下的，作形容詞，也指暗地裡進行的，比如說地下組織進行的活動就是underground activities.作名詞，指地鐵
An underground passage
An underground just arrived.
A place to perform underground activities.
A place for underground activities.
學單詞，只記住意思可不行，會用才行，小夥伴們可以在評論區造句，我們一起學習哦！我先來：
造句：You can go there by taking an underground.
Underground的英文解釋：
below the surface of the earth; below groundAn underground activity is secret and usually illegal.a railway system in which electric trains travel through tunnels below groundpeople in a society who are trying new and often shocking or illegal ways of living or forms of art擴展閱讀：
underlie怎麼記
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