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
As a professional basketball player, his performance is really worth noting.
作为一个职业篮球手，他的表现很优秀。
A good beginning is half done.
良好的开端，就是成功了一半。
It's about four hundred yards down this street.
城堡就在这条街上，（离这儿）400码左右。