Fallot's tetrad
[医] 法乐氏四联症, 四联畸形
🧩 词语组成解析
tetrad
['tetræd]
n. 四元组;四分染色体;<化>四价元素;（数目）4;
🗣️ 情景例句
This is he.
我就是。
A man becomes learned by asking questions.
要长学问，就得多问；多问则业精。
Good, we need it.
好，我们等着要这批货。