Question

duration 【duration】n.持续的时间He will be in the hospital for the duration of the school year.学年中他都会呆在医院里。

Accepted Answer

[du'reɪʃn] 
durationthe period of time during which something continues
Duration is how long something lasts, from beginning to end. A duration might be long, such as the duration of a lecture series, or short, as the duration of a party.
The noun duration has come to mean the length of time one thing takes to be completed. The duration of something might be known or not — in past times, the unknown length of time the current war would last was called "the duration. "Musical notes, such as whole notes, half notes, and quarter notes, have different set durations, or lengths of time for which they are held. These varying durations, when put together, create the rhythm of the music.
All forms of 'duration' will appear on average once every 661 pages.duration

Front	duration
Pron	[du'reɪʃn]
Back	【duration】 n.持续的时间 He will be in the hospital for the duration of the school year. 学年中他都会呆在医院里。
Vocab	durationthe period of time during which something continues Duration is how long something lasts, from beginning to end. A duration might be long, such as the duration of a lecture series, or short, as the duration of a party. The noun duration has come to mean the length of time one thing takes to be completed. The duration of something might be known or not — in past times, the unknown length of time the current war would last was called "the duration. "Musical notes, such as whole notes, half notes, and quarter notes, have different set durations, or lengths of time for which they are held. These varying durations, when put together, create the rhythm of the music. All forms of 'duration' will appear on average once every 661 pages. duration

Duration Time Notes Length Du'reɪʃn N.持续的时间 Hospital School