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
Seven o'clock, I'll pick you up at your office.
晚7点，我去办公室接你。
Rivers need a spring.
大河要有源头。
As a matter of fact, he was pretending to be ill.
实际上，他是在装病。