Invalid digit
[计] 无效数位
🧩 词语组成解析
invalid
[ɪn'vælɪd]
adj. 无效的;不能成立的;有病的;病人用的;
vt. 使伤残;使退役;失去健康;
n. 病人，病号;残废者;伤病军人;
vi. 变得病弱;因病而奉命退役;
in不+val强壮+id...的→虚弱的；病人
digit
['didʒit]
n. 数字;手指，足趾;一指宽;
🗣️ 情景例句
Can you work out what these squiggles mean?
你能辩认出这些潦草的字迹是什么意思吗？
There was perfect harmony between the two brothers.
兄弟俩感情非常融洽。
It was no use pretending that I had not seen him, so I waved to him.
若再装作没看见他已是没有用了，我只好向他招手。