The miners who survived were stuck on a work platform underground, officials said.
官员称，幸存矿工被困在一个地下的工作平台上。
These men work underground, mining for coal.
这些人在地下采煤。
Did he use to take the underground to go to work?
他以前是否常常乘搭地下铁路上班？
My mom goes to work by underground.
我妈妈乘地铁去工作。
These men work underground for 6 hours at a time, mining for coal.
这些人在地下工作一次挖煤6小时。
These men work underground for 6 hours at a time, mining for diamonds.
这些男子在地下一次工作六小时，开采金刚石。
I go to work by underground everyday.
每天我乘地铁上班。
Everyday he takes the underground (subway) to work.
他每天坐地铁上班。
Everyday he takes the underground (subway) to work.
他每天坐地铁上班。
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