Purchase letter
[经] 定购函, 认购书
🧩 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
That fat kid must be hooked on sweets.
那个胖男孩儿是个糖罐子。
To speak to the public
向公众呼吁
Which speech are you going to?
你打算去听哪个报告呢？