Problem definition
[计] 题目定义
🧩 词语组成解析
🗣️ 情景例句
Oh, you've been here before.
噢，你以前来过的。
Each item is to be wrapped separately in gerase-paper.
每件货物应单独用油纸包好。
rising at one-foot intervals all the way to the top of the atmosphere.
并按1英尺的间隔从地面一直排列到大气层的顶端。