🧩 词语组成解析
[化] 接骨木花
[医] 黑质
🗣️ 情景例句
How do you tie it?
你怎么打的？
Besides the required courses, I'm taking an elective in the Lab Science.
除必修科目外，选修科目我选了实验科学。
What is it?
什么呢？