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express + noun
express 作形容词表示“特快的、快速的”，通常放在名词前，常修饰 train、bus、mail、delivery 等。
We took the express train to the airport.
我们乘快车去机场。
特快的；快速的
先理解核心含义，再看它在真实句子里的用法。
特快的；快速的
Moving or operating quickly, as a train that does not stop at local stations.
We took the express train to the airport.
我们乘快车去机场。
快速移动或操作的,如不在本地停靠的火车
Moving or operating quickly, as a train not making local stops.
具体或精确的；直接明确陈述的；不仅仅是暗示的
Specific or precise; directly and distinctly stated; not merely implied.
真实描绘的；完全相似的
Truly depicted; exactly resembling.
We took an express train to the city, which saved us an hour.
我们乘坐了一趟特快列车去城市，这为我们节省了一个小时。
She came with the express purpose of apologizing to you.
她来的明确目的是向你道歉。
The package was sent via express delivery and arrived the next day.
这个包裹是通过快递寄送的，第二天就到了。
express 作形容词表示“特快的、快速的”，通常放在名词前，常修饰 train、bus、mail、delivery 等。
We took the express train to the airport.
我们乘快车去机场。
这是一个固定表达，意为“为了……的明确目的”，强调行为是特意、专门做出的。
She came back for the express purpose of solving the problem.
她回来就是为了解决这个问题。
Not this
She express told me to come early.
Use this
She expressly told me to come early.
express 是形容词，不能修饰动词 told；修饰动词应使用副词 expressly。
Not this
I came with the express purpose to see you.
Use this
I came with the express purpose of seeing you.
express purpose 后接 of + 动名词表示目的内容，不接不定式 to see。
Not this
I took express train.
Use this
I took an express train.
express train 中的 train 是可数名词，单数形式前需加冠词 an；中文没有冠词，所以容易漏掉。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
特快列车
We took the express train from London to Edinburgh, which only stopped at big stations.
我们乘坐从伦敦到爱丁堡的特快列车，它只在大的车站停靠。
快递配送
The shop offers express delivery for orders placed before noon.
该商店对中午之前下的订单提供快递配送。
快递邮件
Please send the contract by express mail so it arrives tomorrow.
请用快递邮件寄送合同，以便明天到达。
快速通道
Cars with two or more passengers can use the express lane on the highway.
载有两名或以上乘客的汽车可以使用高速公路上的快速通道。
明确目的
She came to the meeting with the express purpose of resolving the dispute.
她来参加会议的明确目的是解决争端。
明确同意
The test may only be performed with the patient's express consent.
只有在患者明确同意的情况下才能进行这项检查。
他是上帝荣耀所发的光辉，是上帝本体的真像。
In the King James Bible, Hebrews 1:3 says the Son is the express image of God, meaning he perfectly shows what God is like.
在英王钦定版圣经里，希伯来书1:3说圣子是上帝本体的真像，意思是他完美地显明上帝是怎样的。
Use express naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
express 里有 press，想象按一下快进键，列车飞速直达、不停小站；也表示把话说得明确直白。
语域：neutral 常见场景：铁路/火车、交通公告/时刻表 表示“特快的”这一义项时，通常修饰交通方式（如 an express train），多用于铁路时刻表、车站公告等书面或正式场景；语气中性，不算口语化。
通常作定语，也有作表语的情况
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.