Rescuers said they would resume drilling a separate shaft as a back-up plan in case of problems with the first one.

救援人员称，作为备用他们将会重新开钻另一口竖井，以防第一口竖井出现问题。

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Rescuers said they would resume drilling a separate shaft as a back-up plan in case of problems with the first one.

救援人员称，作为备用他们将会重新开钻另一口竖井，以防第一口竖井出现问题。

youdao