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一般人可能都到过地面以上300米的地方,但是去过地面以下300米的人恐怕就不多了,尤其是去地下300米做一场非同寻常的旅行。
The average person may have been to 300 meters above the ground, but I am afraid there will not be more than 300 meters below the ground. In particular, I will go to 300 meters underground to make an extraordinary trip.