Perfect optical system
[化] 理想光学系统
🧩 词语组成解析
🗣️ 情景例句
We accepted their challenge to a baseball game.
我们接受了他们棒球邀请赛的挑战。
The fool doesn't suspect a thing.
傻人不疑心什么。
for it produces a resentful animal who at a later stage may well turn man-killer.
因为这种方法训练会使动物反感，在以后某个时期可能会变成伤人的动物。