I have been an engineer for more than ten years,but I was once a worker for three years.
I have been an engineer for more than ten years,but I was once a worker for three years.
這里was once a worker 為什么不是had been a worker?
這里was once a worker 為什么不是had been a worker?
英語人氣：233 ℃時(shí)間：2019-11-04 22:24:59
優(yōu)質(zhì)解答
因?yàn)橹骶溆昧诉^去完成時(shí),從句用一般過去時(shí)表示曾經(jīng)做過某一*******
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