Optical detection
[计] 光检测
🧩 词语组成解析
🗣️ 情景例句
When and what university did you graduate from?
你何时从哪所大学毕业？
A good horse oft needs a good spur.
好马常需好靴刺。
he said. But I don't have many friends, and I don't enjoy myself very much. I don't know why!
他说，“但是我没有很多朋友，我过得不很愉快。我不懂为什么！”