Adder-subtracter
[计] 加减器
🧩 词语组成解析
adder
['ædə]
n. 加法器，（欧洲产）蝰蛇（小毒蛇），（北美产无毒的）猪鼻蛇;
subtracter
[səb'træktə]
n. 减法器;
🗣️ 情景例句
Too many people take drugs to get high.
好多人吸毒是为了得到一种快感。
Advanced technology has enriched China.
先进的工业技术使中国富裕起来。
It was upon this principle that the first instruments were made,
据这一原理，制造出了最初的地震仪器，