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as required的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Adverb:
-
according to need (physicians use PRN in writing prescriptions);
"add water as needed"
as required的用法和样例：
例句
- You can do this as many times as you want.
您可以按需要多次执行此操作。 - Lift the carpeting in the left under-seat area as required to access the amplifier.
按需要抬器在左下座位区域的地毯，以接触到放大器。
