duty

来自due, 欠债的，应当的。引申词义责任，税。

duty

duty: [13] Duty comes from Anglo-Norman dueté. This was a derivative of Old French deu ‘owed’ (source of English due [13]), which in turn came from Latin dēbitus, past participle of dēbēre ‘owe’ and source of English debit and debt. (Latin dēbēre was originally a compound verb formed from the prefix dē- ‘away’ and habēre ‘have’, literally ‘have away’, that is ‘keep in one’s possession what belongs to someone else’.) So etymologically one’s duty is what one ‘owes’ to others.
=> debit, debt, due

duty (n.)

late 13c., from Anglo-French duete, from Old French deu "due, owed; proper, just," from Vulgar Latin *debutus, from Latin debitus, past participle of debere "to owe" (see debt). Related: Duties. The sense of "tax or fee on imports, exports, etc." is from late 15c.; duty-free as a noun is attested from 1958.

1. They clocked off duty and left at ten to three.

他们打卡下班，于2点50分离开。

2. The first duty of a director is to recce his location.

主管的第一项任务是熟悉所在地区的情况。

3. He had a third examination and was declared unfit for duty.

他接受了第三次检查，被告知不宜上班。

4. My mother waxed eloquent on the theme of wifely duty.

我母亲大谈为妻之道。

5. The Night Duty Officer was ready to clock off.

值夜班的警员准备打卡下班。