ten months old 十个月大
at four months old 在四个月大时
three months old 三个月大
Now four months old 现在四个月大
It only 6 months old 它只有6个月大
Child about ten months old 孩子大约十个月大
about ten months old 大约十个月
3 months old 月龄
We reported last week that Helen Keller suffered from a strange sickness when she was only nineteen months old.
VOA: special.2009.11.15
This thing this new invention is three months old at this point.
在此刻,这一新的发明却,已经有三个月的历史了。
His family moved to Texas when he was only three months old.
VOA: special.2010.03.17
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