Howell's tests
[医] 豪威耳氏试验(检凝血酶原)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
He doesn't have any family with him.
他没有家人和他在一起。
Knowing something of everything, and everything of something.
通百艺而专一长。
What happened before printing was invented?
印刷术发明以前是怎么一回事？