数词+单数名词+核心名词A three-minute walk 三分钟的步行路程It’s a three-minute walk for me to go to school.我去学校是三分钟的步行路程。A twenty-kilometer hiking 20公里的徒步I am going on a twenty-kilometer hiking this weekend. It’s gonna be a big challenge for me.这周末我准备去参加一个20公里的徒步。对我来说会是个很大的挑战。A five-meter drop 离地五米的下落It was a five-meter drop to the ground.调到地上是五米。表达单数数量的概念，也可以用所有格形式’sA week's wages 一周的薪水He was given a week's wages.他发了一周的薪水。A kilometer’s walk 一公里的步行路程It was a kilometer's walk to the nearest bus stop.走到最近的公交站会是一公里的路程。今日挑战这句话中有一处错误改正并写在留言处和大家分享She has a three years old boy. And her daughter is 12 years old. 【翻阅上一期内容即可查阅正确答案】
