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並前往https://www.hse.gov.uk/work-at-height/faqs.htm

Frequently asked questions - Working at height - HSE

Ladders and stepladders · When is a ladder right for the job? · What is the definition of a working platform? · What do the Regulations say about ...

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查詢 「I was working」的人也找了：

  1. have worked意思
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  2. past continuous中文
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  3. He was working or he worked
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  4. I was working or I have worked
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  5. I were
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  6. Past was past
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  7. I worked for
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  8. Past perfect
    9.