Hemotachometer
血流速度计
🗣️ 情景例句
Relax! Be patiend and enjoy yourself.
放松点！要有耐心，并让自己快乐！
Do well is better than say well.
说得好不如做得好。
They then knew that they had discovered the cause of the fire.
这时调查人员知道他们找到了发生火灾的原因了。