一岁的英文是:One year old ,yearling 。 例句1:Many infants do not cut their first tooth until they are a year old. 翻译:很多婴儿到一岁大时才开始长牙。 例句2:He was adopted by his eldest uncle when he was just one year old. 翻译:他一岁时就出继给大伯父了。一岁的英文是:One year old ;两岁的英文是:Two years old ;三岁的英文是:Three years old ;四岁的英文是:Four years old ;五岁的英文是:Five years old 。一般我多少岁用语句 i am ... years old 来表示。