adj.地下的；秘密的
adv.在地下；秘密地
n.地下；地鐵；地道；秘密活動(dòng)
Listen to the Sound From Underground. 聽聽地下的聲音。
Underground water that is held in the soil and in pervious rocks. 土壤和能滲透的巖石中含有的地下的水。
The insurrectionary detachments started in Yunghsin as an underground force,but they have come into the open since we captured the entire county. 暴動(dòng)隊(duì)始于永新，原是秘密的，奪取全縣以后，公開了。
用作副詞 (adv.)Moles stay underground most of the time. 錢鼠大部分時(shí)間住在地下。
Torrential rivers are rumbling deep underground. 急流在地下深處隆隆奔騰。
They were making a plan underground. 他們?cè)诿孛艿夭邉潯?/p>
Enemy's spies work underground to collect our information. 敵人的間諜秘密地收集我們的情報(bào)。
用作名詞 (n.)Moles stay underground most of the time. 錢鼠大部分時(shí)間住在地下。
Torrential rivers are rumbling deep underground. 急流在地下深處隆隆奔騰。
I obtained it for one pound in the underground. 這是我在地鐵花一英鎊買來的。
They dived into the Underground to escape the rain. 他們急忙鉆進(jìn)地鐵避雨。
The prisoner escaped by digging an underground wunnel. 囚犯挖了一條地道逃跑了。
We were forced to move underground, to the tunnels here. 我們被迫撤向地下，來到了這些地道里。
The spy never told his family about his underground activities. 這位間諜從未把他的秘密活動(dòng)告訴家里人。
