K-12
从幼儿园到12年级的儿童教育
🧩 词语组成解析
twelve
🗣️ 情景例句
which has been vacant for over a year now,
已空了一年多，
He tells me is a city boy, and this is his first time to live in a camp like this.
他说他是一个都市男孩，这是他第一次过这种野营生活。
Sorry, I can't. I have to tidy my room.
对不起，我不能去。我得收拾房间。