underground

/'ʌndәgraund/ uk　 词频 #5341

雅思 IELTS托福 TOEFL英语专业八级英语专业四级

underground 是什么意思

中文释义

n. 地下, 地铁, 地道, 秘密活动

a. 地下的, 秘密的

adv. 在地下, 秘密地

英文释义

n. a secret group organized to overthrow a government or occupation force

r. in or into hiding or secret operation

r. beneath the surface of the earth

underground 的真实例句

以下例句摘自真实英文文章，看看 underground 在自然语境里怎么用：

Engineers dig underground tunnels, then blast an undercut below the ore body, forming an artificial cavern.

—— How cosmic rays are helping mining companies find critical minerals underground

Block caving also keeps much of the disturbance underground, generating far less surface waste rock than open-pit operations.

—— How cosmic rays are helping mining companies find critical minerals underground

Block caving is far cheaper than other underground mining methods, in part because gravity helps to crush and move the ore.

—— How cosmic rays are helping mining companies find critical minerals underground

Placing detectors underground and measuring arriving muons makes it possible to create a high-resolution, cone-shaped, three-dimensional map of the surrounding rock.

—— How cosmic rays are helping mining companies find critical minerals underground

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