Back letter
[经] 退回信件
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
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
How is your tennis coming along?
你的网球打得怎么样？
I feel terrible about it.
太对不起了。
The next car the boy stopped did not take him into the centre of Paris as he hoped it would, but to Perpignan on the French-Spanish border.
男孩截住的下一辆车，没有像他希望的那样把他带到巴黎市中心，而是把他带到了法国和西班牙边界上的佩皮尼昂。