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
Why were you out of work for so long?
你为何这么久没有工作？
This is a map.
这是一张地图。
I reached out to Annie's hand.
我把手伸向安妮的手。