Hvd
abbr. high-velocity detonation 高速爆炸; hypertensive vascular disease 高血压性血管疾病
🗣️ 情景例句
Bye-bye.
再见。
Know something of everything and everything of something.
既要有一般常识，又要有专业知识。
There was also a great deal of machinery on display.
参展的还有很多机器，