as
翻譯
作為, 如同, 因為, 當…時
例句
He works as a teacher.
他以教師為業。
She sings as beautifully as a bird.
她唱歌像鳥兒一樣動聽。
As it was raining, we stayed inside.
因為在下雨，我們待在室內。
He arrived as I was leaving.
我正要離開時他到了。
文法模式
as ((a/an + noun)) 作為，描述角色或功能 He works as a doctor.
as ((adjective/adverb)) as 和…一樣…，用於比較 It's as cold as ice.
as ((clause)) 因為，給出原因 As it's late, I'll go home.
as ((clause)) 當…時，表示同時發生的動作 She smiled as he walked in.
近義詞
同義詞：like, because, when, while
詞源
源自古英語「alswa」，意為「完全如此，正如」。
記憶技巧
「as」是一個有很多功能的小詞：角色（as a...）、比較（as...as）、原因（as...）和時間（as...）。