Protosiphon
原生管属
🗣️ 情景例句
I'd better hit the books.
我最好勤奋学习。
I didn't realize the time had passed so quickly.
我没有认识到时间这样快速过去了。
It is ten o'clock.Mrs.Sawyer usually stays at home in the morning, but this morning, she is going to the shops.
现在是10点钟。上午，索耶夫人通常是呆在家里的，但今天上午，她正去商店买东西。