1
by airmail
常用作方式状语。
I sent the package by airmail.
我通过航空邮件寄了包裹。
航空邮件；航空邮包
airmails — plural of airmail
先理解核心含义，再看它在真实句子里的用法。
航空邮件；航空邮包
letters and packages that are transported by aircraft
I sent the package by airmail.
我通过航空邮件寄了包裹。
使用飞机运送邮件的系统
The system of conveying mail using aircraft.
通过飞机运输的信件和包裹
letters and packages that are transported by aircraft
以这种方式运送的邮件
The items of mail so carried.
通过飞机传递邮件的系统
a system of conveying mail by aircraft
I sent the package by airmail to ensure it arrives before the weekend.
我通过航空邮件寄出了包裹，以确保它在周末前到达。
Air mail is usually more expensive than surface mail, but it's much faster.
航空邮件通常比平邮贵，但速度快得多。
The letter arrived by airmail from Japan in just three days.
这封信通过航空邮件从日本寄来，仅用了三天。
常用作方式状语。
I sent the package by airmail.
我通过航空邮件寄了包裹。
Please send the documents by airmail.
请通过航空邮件寄送文件。
名词修饰名词结构。
Airmail delivery usually takes 5-7 days.
航空邮件递送通常需要5-7天。
Not this
I sent an airmail to China.
Use this
I sent a letter by airmail to China.
airmail 作为名词表示航空邮件系统时是不可数名词，不能与不定冠词连用。应使用 "by airmail" 表示方式，或说 "an airmail letter" 但此时 airmail 是形容词。
Not this
I will send the document airmail.
Use this
I will send the document by airmail.
表示通过航空邮寄时，需使用介词 "by" 构成介词短语 "by airmail"，而不能直接用名词作状语。
Not this
I received an air mail package.
Use this
I received an airmail package.
标准拼写为一个单词 "airmail"，而非两个单词 "air mail"。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
通过航空邮件（邮寄）
I sent the documents by airmail.
我通过航空邮件寄送了文件。
航空信
She wrote an airmail letter to her grandmother.
她给祖母写了一封航空信。
航空邮票
I need an airmail stamp for this postcard.
我需要一张航空邮票来寄这张明信片。
航空信封
He put the photos in an airmail envelope.
他把照片放进了一个航空信封。
航空邮资
The airmail postage to Japan is quite expensive.
寄往日本的航空邮资相当昂贵。
航空包裹
I sent a small airmail parcel to my friend.
我给朋友寄了一个小航空包裹。
发长 /eɪ/ 音 (如 rain, wait)
Use airmails naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把单词拆成 air（空中）+ mail（邮件）：邮件坐飞机走，就是“航空邮件”。想象一架飞机驮着信件飞过大洋，帮你在脑海里记住拼写和意思。
语域：neutral 常见场景：postal services、international mailing 该词为中性语体，多用于邮政、国际寄送等场合，口语和书面语中都比较常见。
These words rhyme with the final syllable of 'airmail': 'mail', 'email', and 'female' end in /meɪl/, while 'nail', 'sail', and 'trail' end in /eɪl/. The spelling '-ail' is pronounced /eɪl/ in this set. Note that 'female' uses the spelling 'male', not 'mail', though it sounds the same. The first syllable of 'airmail' is /ɛr/, so it is not pronounced 'eye-mail'.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.