Letter/mail 信
Signature 签名
Petitions bearing nearly a half-million signatures were sent to the White House.
有将近五十万人签名的请愿书被送到白宫。
Post/zip code 邮编
Overweight 超重
Envelope 信封
By ordinary mail/by surface mail 平邮
Parcel/package 包裹
This parcel came in the mail today.
这个包裹是今天邮来的。
Letter box 邮筒
注:letter box主要用于英式英语中,在美式英语中的对应表达是"mailbox".
Registered mail 挂号信