Complement arithmetic
[计] 补码运算
🧩 词语组成解析
🗣️ 情景例句
How long will this letter take to get there?
这封信需要多长时间到那儿？
Friends are like fiddle-strings,they must not be screwed too tight.
朋友有如琴弦，不能上的太紧。
Is this box big? No, it's small.
不，是小的。