Topometer
地形测斜仪
🗣️ 情景例句
It'll only take a few minutes.
只要几分钟时间。
If it doesn't rain tomorrow, we'll have a picnic.
如果明天不下雨，我们就去野餐。
Tomorrow is christmas Eve, and my father and I went to choose a Christmas tree today.
明天是圣诞节前夜，今天我和父亲去选圣诞树。