He knew of no rock; he saw hardly any danger.
他并不守道有礁石，也看不出有什么危险。
Danger could be lurking behind every rock.
危险能潜伏在每个石头后面。
Thus increase the danger of happening rock burst or other rock instabilities.
从而增加出现岩爆或其他岩体失稳的危险。
Thus increase the danger of happening rock burst or other rock instabilities.
从而增加出现岩爆或其他岩体失稳的危险。
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