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
He felt that his life was no longer worth living.
他觉得他的生命已经没有再活下去的价值了。
He who despises small things seldom grows rich.
小钱不计，大钱不聚。
Beware of methylated alcohol, which is very poisonous,
要提防甲基化酒精，那是剧毒的，