Positive definite
[计] 正定的
🧩 词语组成解析
positive
['pɑzətɪv]
adj. 积极的;确实的，肯定的;[数]正的;[医]阳性的;
n. 正面;正片;[语]原级形容词;[数]正量;
posit肯定+ive形容词后缀 → 肯定的；积极的
🗣️ 情景例句
Thank you for reminding us that you will be in town next Wednesday and would like to discuss your printing services with Ms. Smith.
谢谢你告诉我你下同周三将到达达镇上并希望与史密斯夫人讨论有关印刷服务问题。
As a senior, Peter is writing his thesis.
作为大学四年级学生，彼得正在写毕业论文。
Yes, they are.
对，这些是英语书。