Positive meniscus
[医] 正透镜, 凹凸透镜
🧩 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
n. 新月形物, 半月板\\n[化] 弯液面; 弯月面
🗣️ 情景例句
What's wrong?
怎么了？
I didn't read the whole paper, headlines.
我没有看到报纸的全部，我只是大概看了标题。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.
美洲土著人捕捉野马，加以驯服。