Miss Himes teaches the youngest class, the four- and five-year-olds.海姆斯小姐教年龄最小的班，都是四五岁的孩子。Even the smallest baby can identify its mother by her voice.就连年龄最小的婴儿也能根据声音分辨出自己的妈妈。The whole school, with the exception of the youngest class, had to attend the ceremony.除了年龄最小的班级，全校都必须参加这个典礼。