as + clause (reason)
as 作为连词表示原因，语气较弱。
As it was raining, we stayed inside.
因为下雨了，我们呆在室内。
像；和……一样；按照
当；在……的时候；因为；由于；至于；关于；像……这样的；……的；以相同的方式或程度
以相同的方式或程度
In the (same) way or manner that; to the (same) degree that.
在...的时候；当...时
At the time that; during the time when:
因为；既然
Being that, considering that, because, since.
用于介词前以明确短语对句意的限制
used before a preposition to clarify that the prepositional phrase restricts the meaning of the sentence; specifically.
Functioning as a relative conjunction, and sometimes like a relative pronoun: that, which, who. (See usage notes.)
As it was raining heavily, we decided to stay indoors.
因为下着大雨，我们决定待在室内。
用法提示：连词'as'引导原因状语从句，表示'因为'。
He didn't attend the meeting as he was feeling unwell.
他因为感觉不舒服而没有参加会议。
用法提示：连词'as'连接原因状语从句，说明未参加会议的原因。
As she had forgotten her keys, she had to wait outside.
由于她忘了带钥匙，她不得不在外面等。
用法提示：连词'as'表示'由于'，引导原因状语从句。
as 作为连词表示原因，语气较弱。
As it was raining, we stayed inside.
因为下雨了，我们呆在室内。
as 表示原因时可放在句末。
We stayed inside as it was raining.
我们呆在室内，因为下雨了。
grammar · medium
易错句子As it was raining, so we stayed at home.
正确表达As it was raining, we stayed at home.
汉语中常用“因为……所以……”结构，但英语中“as”已表示原因，不能再加“so”，否则语义重复。去掉“so”后句子才符合英语习惯。
grammar · medium
易错句子As the rain, we stayed at home.
正确表达As it was raining, we stayed at home.
“as”作连词表示原因时，后面必须跟一个完整的从句，不能直接跟名词短语。应改为完整的从句“it was raining”，以正确表达因果关系。
because 表示直接的、对方可能不知道的原因，语气强；as 表原因时更像附带说明，通常放在主句前。
since 的原因多指双方已知或明显的事实，常放在主句前；as 的原因更客观、语气更弱，且时间义也常用。
for 作连词表原因时语气正式，只能放在主句之后并加逗号；as 引导原因从句位置更自由。
一……就……；尽快
Call me as soon as you get home.
你一到家就给我打电话。
只要；如果
You can borrow the car as long as you drive carefully.
只要你小心驾驶，就可以借这辆车。
好像；仿佛
She spoke to me as if she had never met me.
她跟我说话的样子好像从没见过我。
和……一样；像……那样
The test was not as hard as I expected.
考试没有我预想的那么难。
尽管；即使
As much as I respect him, I disagree with his decision.
尽管我很尊重他，但我不认同他的决定。
以及；也
The program offers training in theory as well as practice.
该课程既提供理论训练，也提供实践训练。
好像，似乎，仿佛
He looked at me as if he didn't know me.
他看着我，好像不认识我似的。
只要；既然
You can borrow the book as long as you return it by Friday.
只要你周五前归还，就可以借这本书。
一……就……；立即
Call me as soon as you arrive.
你一到就给我打电话。
如你所愿。
A famous line from the 1987 film The Princess Bride. When Westley says "As you wish" to Buttercup, it is his way of saying "I love you."
出自1987年电影《公主新娘》。当韦斯特利对巴特卡普说“如你所愿”时，这是他表达“我爱你”的方式。
你一定要记住：吻还是吻，叹息还是叹息；岁月流逝，这些根本的东西依然不变。
A classic song from the 1942 film Casablanca, famous for its theme of enduring love.
出自1942年电影《卡萨布兰卡》的经典歌曲，以永恒的爱为主题。
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Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.