Did you always teach history? Have you always taught history? 有区别吗?分别什么意思?求解 谢谢!Did you always teach history?Have you always taught history?有区别吗?分别什么意思?求解 谢谢!

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Didyoualwaysteachhistory?Haveyoualwaystaughthistory?有区别吗?分别什么意思?求解谢谢!Didyoualwaysteachhistory?Haveyo

Did you always teach history? Have you always taught history? 有区别吗?分别什么意思?求解 谢谢!Did you always teach history?Have you always taught history?有区别吗?分别什么意思?求解 谢谢!
Did you always teach history? Have you always taught history? 有区别吗?分别什么意思?求解 谢谢!
Did you always teach history?
Have you always taught history?
有区别吗?分别什么意思?求解 谢谢!

Did you always teach history? Have you always taught history? 有区别吗?分别什么意思?求解 谢谢!Did you always teach history?Have you always taught history?有区别吗?分别什么意思?求解 谢谢!
有区别,第一个是过去时态,说明现在早已经退休了,或者从事其他工作了
后者是完成时态,说明到说话时,起码一直在从事教育工作,而且很可能一直在教历史