Registered mail
公共 Public[经] 挂号邮件
🧩 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;
mail
[mel]
n. 邮件，邮政;邮政（制度）;邮务员，邮递员;〈古〉袋，旅行包;
vt. 邮寄;给…穿盔甲;
vi. 投邮;
🗣️ 情景例句
He's an aerospace engineer,and works for Orlando Aircraft Corporation.
他担任航太工程师，为Orlando飞机公司工作。
Don't forget to print airmail on the letter.
不要忘记在信封上印上航空邮件
They put small presents in each other's stockings.
他们把小礼物装进对方的长统袜里。