Ans
[计] 美国国家标准
📖 牛津释义
ans
abbr 缩写 = answer.
🗣️ 情景例句
But first in the school-rooms.
但首先是在教室 。
Not at all. Go ahead.
好，请吧。
How did you decide that product was safe?
你怎样决定产品是安全的呢？