The chemical cloud your landlord used to kill cockroaches ?

记得过去房东为驱走蟑螂而喷的化学气雾剂吗？

All black spots on the floor are cockroaches .

地板上的所有黑色的斑点都是蟑螂。

The most disgusting allergy : cockroaches .

最让人讨厌的过敏：蟑螂过敏。

Cockroaches are also an especially long-surviving animal .

蟑螂也是一种存活了很久的动物。

The cockroaches of the robot world these were designed to search disaster sites .

机器人界的蟑螂，该款机器人设计用于搜索灾难现场。