Local residents have been evacuated and heavy machines were brought in along with sniff dogs to help in the rescue.

当地群众已经撤离，重型机器和嗅探犬已经进入该地帮助营救。

They are most of the time, and they're doing so with the help of sniffing dogs, with cranes and with helicopters.

大多数情况下，在嗅探犬、起重机和直升飞机的帮助下，救援人员可以进入重灾区。

They're also deploying bomb sniffing dogs as a part of a way to cut the wait times.

他们还部署了炸弹嗅探犬，作为缩短等待时间的一种方式。

Dogs are descended from ancient breeds of wolves – very social animals who live together in packs, so it makes sense that a dog would sniff and come closer to investigate what was happening.

狗是由古老品种的狼进化而来的，狼是一种群居动物，成群地生活在一起，所以狗会嗅闻并不断靠近来探查发生了什么事是有道理的。