Registered letters
[经] 挂号信件
🧩 词语组成解析
registered
['redʒistəd]
adj. 注册的;登记过的;已挂号的;（动物）附有血统证明的;
v. 记录;登记;注册;显出;
letters
[[letəz]]
n. 字母；书信；读者投书栏（letter的复数）
🗣️ 情景例句
All students without exception must take the English examination.
所有学生毫无例外地都必须参加英语考试。
Won't you be embarrassed to leave the party early?
你提早一点离开宴会也无妨吧？
Then he sat there and looked at it for three hours! He didn't write a word!
然后他就坐在那里，对着考卷看了3个小时，一个字也没写！