The birds learn to peck holes in the milk bottle tops.鸟儿们学习在牛奶瓶的盖上啄洞。Many microwaves heat unevenly, leading to hot spots in the milk.很多微波炉加热不均匀，导致牛奶中有过热部分。She opened the front door to fetch in the milk.她打开前门去把牛奶拿进来。I opened the front door to fetch in the milk.我打开正门去取牛奶。