Opticals
(optical 的复数) a. 眼睛的, 视觉的, 光学的\\n[机] 光学上的, 光学的
🗣️ 情景例句
Something old ...
旧的东西……
Nothing venture, nothing win (or have or gain).
不入虎穴，焉得虎子。
There are even stories of half-trained elephant calves who have refused to feed and pined to death when by some unavoidable circumstance they have been deprived of their own trainer.
训练了一半的小象，由于不可避免的情况与他们的主人分离后，竟拒绝吃食，消瘦至死。