be at work的用法和樣例:
例句
- Unknownforces were at work to overthrow the government.
有些尚未查明的勢力正在活動圖謀推翻政府。
- Please phone the office and tell them I won't be at work today because I'm feeling out of sorts.
請打電話給辦公室,告訴他們我因為身體不太舒服,所以今天我不去上班。
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