Vas
[医] 管, 脉管
🗣️ 情景例句
Reading childern's literature is an excellent way for the beginning English speaker to improve.
对于刚刚开始学说英语的人，阅读儿童文学读物是个不错的方法。
I'll have studied English for four years next March.
到明年三月，我就学了四年的英语了。[将来完成时，表示将完成…，会做完…]
Is everything under control?
一切都在掌握之中吗？