1岁时,是 one years old 还是 one year old?

1岁时,是 one years old 还是 one year old? old one years 请问,“一岁”翻译成英语是one year old还是one years old? 一岁是one year old还是one years old? 急! 英语口语中,“我21岁”是I am twenty first years old,还是twenty one years old? she is o() one years old years old怎么读,比如:one(万) ____black one is two years old and____yellow one is Three years old. he is only forty-one years old他只有四十一岁.后面的old表示什么意思,只有形容很年轻有,但old是老的 The dog is one .选择A year B years old C old D year old 请问,我一岁了,用英语怎么说:one year old ,还是one years old 改错 My sister is one years old than I.abc he is one ---- old .横线上填year还是years One or two thouthands years old 什么意思 My uncle is 什么.He is twenty-one years old. 是FIVE YEAR OLD还是FIVE YEARS OLD 选择1.my brothers is ( )than me A one old year B one year old C one year older D one years old Tina is 14 years old.Tara is 15 years old.改为合并句 Tara is one year____ _____Tina.