Aplanatic objective
[医] 消球差物镜
🧩 词语组成解析
a. [物]等光程的,(透镜)消球差的
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
One scoop or two?
一杓还是两杓？
It's a small world.
世界真小！
There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation.
长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命；或在人们周围列队保护，使他们免遭鲨鱼伤害。