Can you explain why we need to do this?
這句中文：
👉 你能解釋為什麼要這麼做嗎？
可以用英文這樣說：
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✅ 最自然（推薦）
Can you explain why we need to do this?
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✅ 其他常用說法
Can you explain why this needs to be done?
Could you explain why we are doing this?
Can you tell me why we have to do this?
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📌 結構說明
explain + why + 名詞子句（why we do this）
why 後面一定用「正常語序」，不是問句
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⚠️ 常見錯誤
❌ Can you explain why do we do this?（錯：變成問句語序）
✔ Can you explain why we do this?（正確）
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如果你是在工廠現場要問主管，我也可以幫你改成更禮貌或更強硬的版本。
