Ants everywhere!

These days, I think it’s the weather getting warm again; therefore there were ants everywhere on my desk and my bed AGAIN! That’s really pissed me off! I was fed up with they crawled around on my desk and regarded my water as their swimming pool. How disgusting they were! My roommates and I tried to apply some pesticide on the wall and tried to poison them. It looked work in two or three days but the following days they just appeared again. Even worse, my bed crawled with three or four ants when I was sleep. Oh my goodness! I cannot do anything except poison them. I hope winter will come soon, and then there will not be so many insects in our dorm.