| 单词 | duration of time |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔session〕The term or duration of time that is taken by such a series of meetings.会议期：这样一系列会议的持续时间或日程美国传统〔stopwatch〕A watch that can be instantly started and stopped by pushing a button and used to measure an exact duration of time.跑表，记秒表：用于准确测量一段持续时间的可由按钮随时开关的表美国传统 |
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