Vierordt's hemotachometer
[醫(yī)] 菲羅特氏血流速度計(jì)
?? 詞語組成解析
血流速度計(jì)
??? 情景例句
I miss them.
我想念他們.
What excuse could he have for being so rude?
他做了那樣無理的事，將如何辯解呢？
Is this a D or a P?
這個(gè)字母是“D”還是“P”？