Significant digit
[计] 有效位; 有效数字
🧩 词语组成解析
significant
[sɪɡ'nɪfɪkənt]
adj. 重要的;有意义的;有重大意义的;值得注意的;
n. 有意义的事物;象征，标志;
sign记号，信号+ific产生…的+ant形容词后缀→有意义的
digit
['didʒit]
n. 数字;手指，足趾;一指宽;
🗣️ 情景例句
Money is everything to him.
钱对他而言是最重要的东西。
Idle people (folks) have the most labour (take the most pains).
懒人做工作，越懒越费力。
and since most medical men in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet,
因为卫生部门的大多数医生都超负荷工作，所以没有多少时间提出一些既费时而又不受人欢迎的忠告，如注意饮食、