当医生不在时，一位资深护士不得不临时担任医生。
When the doctor was away, a senior nurse had to act as the temporary physician.
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act英 /ækt/|美 /ækt/
as英 /æz/|美 /æz/
解释
act 在这里是动词，意思是"担任、充当"。
as 是介词，表示"作为、以...身份"。
act as 是一个固定短语，意思是"担任...角色"或"充当..."。
When the doctor was away, a senior nurse had to act as the temporary physician.
act 在这里是动词，意思是"担任、充当"。 as 是介词，表示"作为、以...身份"。 act as 是一个固定短语，意思是"担任...角色"或"充当..."。
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