There are no objects whose existence is indubitable.
I didn't think I was ever going to get a sensible question.
Find your enemy, you will be safely!
讨厌的人会一直讨厌，讨厌，讨厌，讨厌，讨厌。宝贝，我只会摇，摇，摇，摇，摇。摇掉它。
无人机的价值不在于飞行，而在于落地。