translation.en: They smell with their antennae, and they interact with their antennae, so when one ant touches another with its antennae, it can tell, for example, if the other ant is a nestmate and what task that other ant has been doing.
translation.zh: 它们用触角去嗅. 用触角来交流。 所以当一只蚂蚁的触角碰到另一只蚂蚁的触角 它就知道另一个蚂蚁 是不是同一个巢穴的 以及这只蚂蚁正要做什么事情.