Spherical trigonometry
n. 球面三角学
🧩 词语组成解析
n. 三角学
🗣️ 情景例句
It's unsafe for girls to go out alone at night.
女孩子晚上一个人外出很危险的。
She is the most gracious hostess I have ever known.
她是我所见过的最和蔼的女主人。
OK. But I'm afraid I may be a little late.
好。不过我恐怕会稍晚一点到。