Letter reference
[经] 书信备查
🧩 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
Mom and Dad are already on their way down to the gallery.
妈妈和爸爸已经出发去画廊了。
Few words are best.
少说为妙。
and beyond six or seven they are worthless.
如果超过六七天，天气预报就没有了任何价值。