Fluorite objective
[医] 萤石物镜, 半复消色差物镜
🏥 医学释义
荧石物镜
🧩 词语组成解析
n. 萤石\\n[化] 萤石
objective
[əb'dʒɛktɪv]
adj. 客观的，实体的;目标的;[语]宾格的;[医]他觉的;
n. 目标，任务;[光]物镜;[语]宾语，宾格;[事]出击目标;
ob反对+ject投掷，扔+ive形容词后缀 → 反对扔的 → 客观的；目标
🗣️ 情景例句
Yeah, it's been a long time.
是啊，好久没见面了。
What is known to three is known to everybody.
一件事情三个人知道就人人知道。
For our purposes, we are concerned only with one kind of cost----
就我们的目的而言，我们只关心一种费用-