Constant letter
[计] 常量字母
🧩 词语组成解析
letter
['lɛtɚ]
n. 信;证书，许可证;字母，文字;字面意义;
vt. 用字母标明;写字母于;加标题;
vi. 写印刷体字母;
🗣️ 情景例句
Take care of yourself.
多保重。
Some students quit school due to poverty.
一些学生因贫困而辍学。
He made the first telephone.
他发明了第一部电话。