最佳答案
tits[英]['tɪts][美]['tɪts]n.以牙还牙( tit的名词复数 ); <古>小马; 山雀; 奶头; 例句:
1.Fat and lazy tits risk losing out on a mate, as well. 肥胖和懒惰的山雀同时也会失去配偶。
2.The objects of their attention were 28 male great tits, each of which was observed atdawn three times, with 16-17 days between the observations. 他们的研究对象是28只雄性大山雀，每只鸟在黎明时都将被观察三次，时间持续16至17天。