duty沒有動詞形式復(fù)數(shù) dutiesIt is my duty to report the situation to the company.我把這個(gè)情況上報(bào)給公司是我的責(zé)任。

2She's not on duty today. I'll take her place.她今天沒有在班，由我來代替處理她的事務(wù)。

3One of the essential activities for traveling abroad is shopping in duty-free shops.出國旅游必不可少的一個(gè)活動就是去免稅店購物