noun🔗Share地铁，地下铁道。 An underground railway, especially for mass transit of people in urban areas."My brother uses the underground to get to work every day. "我弟弟每天都坐地铁上班。vehicleareabuildingChat with AIVocabulary GamePractice Reading
noun🔗Share地铁, 地下铁. A train that runs on such an underground railway."My brother took the underground to work this morning. "我哥哥今天早上坐地铁去上班了。vehicletrafficChat with AIVocabulary GamePractice Reading
noun🔗Share地铁，地下铁路。 A rapid transit system, regardless of the elevation of its right of way."The new underground connects the city center to the university campus. "新的地铁连接了市中心和大学校园。vehiclesystemChat with AIVocabulary GamePractice Reading
noun🔗Share地下通道，人行隧道。 An underground walkway, tunnel for pedestrians (called pedestrian underpass in US)."To get to school quickly, the students used the underground walkway. "为了快速到学校，学生们走了地下通道。architecturebuildingplaceChat with AIVocabulary GamePractice Reading
noun🔗Share地下管道，地下通道 An underground route for pipes, sewers, etc."The construction crew worked on the underground, laying new sewer pipes. "施工队正在地下管道里作业，铺设新的污水管道。utilitybuildingChat with AIVocabulary GamePractice Reading
noun🔗Share地下，地面下。 Regions beneath the surface of the earth, both natural (eg. caves) and man-made (eg. mines)."The spelunkers explored the fascinating underground caves. "这些洞穴探险家探索了迷人的地下洞穴。geologyarchaeologyareaenvironmentChat with AIVocabulary GamePractice Reading
noun🔗Share地下组织，地下活动。 (with definite article) A movement or organisation of people who resist political convention."the French underground during World War II"二战期间的法国地下抵抗组织。politicsorganizationgroupChat with AIVocabulary GamePractice Reading
noun🔗Share地下运动，前卫组织 (with definite article) A movement or organisation of people who resist artistic convention."The underground was active in promoting alternative music at the school. "学校里活跃着一个地下运动，积极推广另类音乐。artcultureorganizationChat with AIVocabulary GamePractice Reading
verb🔗Share地下铺设，埋设地下。 To route electricity distribution cables underground"The city is undergrounding the power cables to reduce the risk of outages. "这个城市正在把电缆地下铺设，以降低停电的风险。utilityelectrictechnologybuildingChat with AIVocabulary GamePractice Reading
adjective🔗Share地下的，地底的 Below the ground; below the surface of the Earth."There is an underground tunnel that takes you across the river."这里有一条地下隧道，可以带你穿过这条河。geologynatureenvironmentareaChat with AIVocabulary GamePractice Reading
adjective🔗Share秘密的，隐蔽的，地下的 Hidden, furtive, secretive."These criminals operate through an underground network."这些罪犯通过一个秘密的地下网络进行活动。culturepoliticssocietyChat with AIVocabulary GamePractice Reading
adjective🔗Share地下的，秘密的，非官方的。 Outside the mainstream, especially unofficial and hidden from the authorities."underground music"地下音乐culturesocietypoliticsChat with AIVocabulary GamePractice Reading
adverb🔗Share在地下, 地面下. Below the ground."The tunnel goes underground at this point."隧道从这里开始进入地下。geologyenvironmentplaceChat with AIVocabulary GamePractice Reading
adverb🔗Share秘密地，暗中。 Secretly."The student planned the surprise party underground, keeping it a secret from everyone. "这个学生秘密地计划了这个惊喜派对，对所有人保密。politicsgovernmentChat with AIVocabulary GamePractice Reading
