Engineers trying to rescue 33 miners trapped underground in Chile for more than six weeks have begun drilling a third escape tunnel.
努力救援智利陷入地下超过六周的33名矿工的工程师们，开始起钻第三条逃生通道。
Determined not to care, Gilly engineers her own rescue.
坚决的不去关心，吉莉策画营救她自己。
But faster helicopters would be useful, particularly for rescue missions and military operations, so engineers are constantly looking for ways to make them.
但是速度更快的直升机将大有作为，特别是救援任务和军事行动。因此工程师们始终如一地寻找办法来制造这种更快的直升机。
But faster helicopters would be useful, particularly for rescue missions and military operations, so engineers are constantly looking for ways to make them.
但是速度更快的直升机将大有作为，特别是救援任务和军事行动。因此工程师们始终如一地寻找办法来制造这种更快的直升机。
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