hour
/ˈaʊə(r)/noun
1
- a period of time equal to a twenty-fourth part of a day and night and divided into 60 minutes小时：
York is within an hour's drive
去约克开车不到一小时
rates of pay were low, starting at £1.20 an hour
报酬标准很低, 起价每小时1.2英镑
as modifier, usu. with preceding numeral a two-hour operation.两小时的手术。
1.1
- a more indefinite period of time一段时间：
during the early hours of the morning.
在凌晨这段时间。
1.2
- the distance travelled in one hour一小时的行程：
Ocean City is less than an hour away.
去海洋城用不了一小时。
2
- a time of day specified as an exact number of hours from midnight or midday（从午夜或正午算起的）整点, …点整：
the clock in the sitting room struck the hour.
起居室的钟在整点报时。
2.1
hours
with preceding numeral a time so specified on the 24-hour clock在24小时计时制的钟上的准点时间：the first bomb fell at 0051 hours.
第一颗炸弹在零点51分投下。
2.2
- the time as formerly reckoned from sunrise（以前）从太阳升起计算的时间：
it was about the ninth hour.
太阳升起约有九个小时了。
3
- a fixed period of time for an activity, such as work, use of a building, etc.（为某一活动, 例如工作、建筑物的使用等的）一段固定时间：
licensing hours.
许可的时间。
3.1
- a particular point in time特定的时刻（或时间点）：
I wondered if my last hour had come
不知我的最后时刻是否到了
you can't turn him away at this hour.
这个节骨眼上你不能拒绝他。
4
- （一般作hours）(in the Western (Latin) Church) a short service of psalms and prayers to be said at a particular time of day, especially in religious communities（西派教会中）固定时分短礼拜（尤指宗教团体的）
5
- Astronomy 15° of longitude or right ascension (one twenty-fourth part of a circle)【天文】黄经（或赤经）15°（圆的1/24）。
短语
all hours
- most of the time, especially outside the time considered usual for something（尤指在通常做某事的时间之外的）大部分时间：
teenagers expect to be allowed to stay out to all hours.
青少年希望被允许大部分时间待在外面。
keep late（或regular）hours
- do the same thing, typically getting up and going to bed, late or at the same time every day每天做同一件事情（多指起床和睡觉）很晚（或有规律）。
on the hour
- at an exact hour, or at the beginning of each hour, of the day or night每逢整点; 在每一小时（开始时）：
news bulletins all day on the hour.
全天整点发布的新闻简报。
within the hour
- after less than an hour一小时之内, 不到一小时后：
his response came within the hour.
他不到一个小时就作了答复。
词源
Middle English: from Anglo-Norman French ure, via Latin from Greek hōra 'season, hour'.