Spherical trigonometry
n. 球面三角学
🧩 词语组成解析
n. 三角学
🗣️ 情景例句
I'd like to talk to you about something.
我想跟你谈一件事。
Life is half spent before we know what it is.
等到认识人生，已经一半过去了。
They have been told that rescue operations are progressing smoothly.
他们一直被告知营救工作进行得非常顺利。