Alphanumeric character subset
[计] 字母数字字符子集
🧩 词语组成解析
alphanumeric
[,ælfənju:'merik,-kəl]
adj. 文字数字的，包括文字与数字的;
character
['kærəktɚ]
n. 性格;特点;字母;角色;
vt. 刻，印;使具有特征;
subset
['sʌbset]
n. 子集;
🗣️ 情景例句
Don't worry about it.
别介意。
The modern farmer spreads the agricultural chemicals on the fields.
当今的农民
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）