The nurse said she had taken Jane’temperature rwo hours before.为什么不能用ago呢

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ThenursesaidshehadtakenJane’temperaturerwohoursbefore.为什么不能用ago呢ThenursesaidshehadtakenJane’temperat

The nurse said she had taken Jane’temperature rwo hours before.为什么不能用ago呢
The nurse said she had taken Jane’temperature rwo hours before.为什么不能用ago呢

The nurse said she had taken Jane’temperature rwo hours before.为什么不能用ago呢
before在什么之前,用在过去某种时态,而ago表以前某个时间的事