自从我上次见到他以来，已经有三个月之久了。

It has been three months since I saw him last.

youdao

在此刻，这一新的发明却,已经有三个月的历史了。

This thing this new invention is three months old at this point.

youdao

在录像带被公之于众后，帕丽斯的妈妈凯西·希尔顿声称，她的女儿已经有三个月没有离开家了，而且希尔顿的家人因为这个丑闻去看了理疗师。

Mama Hilton also claimed after the tape was made public her daughter didn't leave the house for three months and that the Hiltons saw a family therapist over the scandal.

youdao

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。

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