Girls are advised to begin testing within three years of when they first have sex, or in any case no later than twenty-one.

VOA: special.2009.11.25

There's three girls and five guys, including myself.

有三个女生，五个男生，包括我。

住宿环境怎样？ - SpeakingMax英语口语达人

Mattel says ninety percent of girls in the United States between the ages of three and ten own at least one Barbie doll.

VOA: special.2009.04.06

It says girls between the ages of three and six own an average of about twelve.

VOA: special.2009.04.06

About three thousand girls attended these schools.

VOA: special.2009.06.15

He was a bestselling author of numerous books. He had a loving marriage and twin three-year-old girls.

VOA: standard.2010.06.19

At the week-long conference, participants are focusing on three primary roadblocks to getting and keeping girls in school: violence,poverty and the poor quality of education being offered.

VOA: standard.2010.05.19