The adverb is pronounced /??nd?'gra?nd/. The noun and adjective are pronounced /'?nd?gra?nd/. 副詞讀作 /??nd?'gra?nd/。名詞和形容詞讀作 /'?nd?gra?nd/。
1. 地下；地面下 Something that is underground is below the surface of the ground.
e.g. Solid low-level waste will be disposed of deep underground... 放射性水平低的固體廢料將做地下深埋處理。 e.g. The plane hit so hard that one engine was buried 16 feet underground. 飛機猛烈撞擊地面，致使一個(gè)引擎陷到了地下16英尺處。
2. 地鐵 The underground in a city is the railway system in which electric trains travel below the ground in tunnels.
e.g. ...a woman alone in the underground waiting for a train... 獨自在地鐵里等車(chē)的女子 e.g. He crossed London by underground... 他乘地鐵穿過(guò)倫敦。
in AM, use 美國英語(yǔ)用 subway
3. （反抗敵人或暴政的）地下組織，秘密組織 In a country which is controlled by an enemy or has a harsh government, the underground is an organized group of people who are involved in illegal activities against the people in power.
e.g. These US dollars were smuggled into the country during the war, to aid the underground. 戰爭期間，這些美元被偷運到該國，用以資助那里的地下組織。
4. 地下的；秘密的；非法的 Underground groups and activities are secret because their purpose is to oppose the government and they are illegal.
e.g. ...the underground Kashmir Liberation Front... 秘密的克什米爾解放陣線(xiàn) e.g. They are accused of organising and financing an underground youth movement. 他們被指控組織并資助地下青年運動(dòng)。
5. 秘密地；隱蔽地；暗中 If you go underground, you hide from the authorities or the police because your political ideas or activities are illegal.
underground的意思
e.g. After the violent clashes of 1981 they either went underground or left the country. 經(jīng)歷了1981年的激烈沖突之后，他們或轉入地下，或離開(kāi)了該國。 e.g. ...opposition leaders, who are working underground because of the threat of arrest. 面臨被捕危險不得不秘密開(kāi)展工作的反對派領(lǐng)導人
underground英英釋義
noun
1. an electric railway operating below the surface of the ground (usually in a city)
e.g. in Paris the subway system is called the `metro' and in London it is called the `tube' or the `underground'
Synonym: metrotubesubway systemsubway
2. a secret group organized to overthrow a government or occupation force
Synonym: resistance
adj
1. conducted with or marked by hidden aims or methods
e.g. clandestine intelligence operations cloak-and-dagger activities behind enemy lines hole-and-corner intrigue secret missions a secret agent secret sales of arms surreptitious mobilization of troops an undercover investigation underground resistance