🗣️ 情景例句
What's the nature of the problem?
是什么样的问题？
For my math requirements, I'll be taking algebra, calculus, and trig.
数学的必修学分预定选代数、微积分、三角法。
She's been there for two months. She's been there since September.
她进校有两个月了。她自9月份起便在那儿学习了。