Hand calculator
[计] 手动计算器
🧩 词语组成解析
hand
[hænd]
n. 手;协助，帮助;（工具等的）把，柄;掌管;
vt. 传递，交给;搀扶;支持;
🗣️ 情景例句
Would you call Priscilla Smith at FAO Schwarz, please?
请拨电话给FAO Schwarz的Priscilla Smith ，好吗？
All is fish that comes to his net.
到了网中都是鱼；只要到手全都要。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）