The duration required to define the work depends on the length of time necessary to discover and document the information, as well as the time required to gain agreement and approval from the client.

需要花费在定义项目工作上的时间取决于了解和文档化这些信息所必需的时间长短，也取决于需要花费在获得客户的同意和认可上的时间长短。

youdao

If the state is Closed, we can calculate the work item status based on Duration and Time Spent value.

如果状态是Closed，那么我们可以基于持续时间和花费时间的值，来计算工作项的状态。

youdao

Today we're going to move away from the first dimension of music that we've been looking at, which is duration, or time, and begin to work with the second, which is pitch, and melody.

今天我们要结束对音乐的第一个维度的学习,即时值,或者说拍子,并开始讨论音乐的第二维度,即音高与旋律

耶鲁公开课 - 聆听音乐课程节选