Ybd
abbr. Y-branching device Y型分路器
🗣️ 情景例句
He had an emergency.
他有紧急事情。
To have a grandson
有了孙子
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。