Midperpendicular
舯垂线
🗣️ 情景例句
What's her name?
她叫什么名字？
Yes,I understand.
是的，我明白了。
Indeed they can have a delightful surprise when they find something useful which they did not know they owned.
确实，一旦无意之中从自己的收藏品中找到某件有用的东西时，可以给人一种惊喜的感觉。