Numerical aperture
[计] 数值孔径, 数字窗口\\n[化] 数值孔径
🧩 词语组成解析
🗣️ 情景例句
You were four or five years old, I think.
当时你才四、五岁 我想。
So he keeps on studying after his English classes in order to prepare for life in America.
所以他在英语课下课后还继续学习，为以后在美国生活做准备。
I'll have to check with my boss.
我得和老板先谈谈。