Optical system
[计] 光学系统\\n[化] 光具组
🧩 词语组成解析
🗣️ 情景例句
That shop sells quality goods.
那家店卖的东西很好。
He's been behind bars for almost 30 years.
他坐了将近30年牢。
The sandwiches are all ready, said her mother. I made some dumplings last night, too!
“三明治全都做好了，”她妈妈说，“昨晚我还做了一些饺子哩！”