Mechanical calculator
[计] 机械计算器
🧩 词语组成解析
🗣️ 情景例句
They mentioned you as a good source of information.
他们说你消息灵通。
It is convenient to know the language.
掌握这门语言会带来方便。
Half the world's telephone calls are made in English.
全球1/2的电话是用英语打的。