Recently, a zinc gel applied nasally has been shown to greatly reduce the duration of colds.(最近，一种应用于鼻腔的锌凝胶被证明可以大大缩短感冒的持续时间。)
This is because middle- and upper- latitude timberlines are strongly influenced by the duration and depth of the snow cover.(这是因为中纬度和高纬度地区的林木线受到积雪存留时间和厚度的强烈影响。)
These periods became known as temporal hours, because their duration varied according to the changing length of days and nights with the passing of the seasons.(这些时段被称为“日光时”，因为它们的持续时间随着不同季节而带来的昼夜长短的变化而改变。)
So so far we've had duration and accent.(目前我们知道了时值和重音这两个途径)
He was given the task of protecting her for the duration of the trial.(他被委以在审判期间保护她的任务。)
To counter these effects on a long-duration mission, say, Mars, astronauts will certainly need to create their own artificial gravity.(比如在火星上，为了在长期任务中对抗这些影响，宇航员肯定需要人为制造重力。)
For example, the average duration of human life has hardly changed in thousands of years.(例如，人类的平均寿命在几千年里几乎没有改变。)
In conversations, interpersonal coordination is found when people adjust the duration of their utterances and their speech rate to one another so that they can enable turn-taking to occur.(在交谈中，人际间的协调性表现在其对说话时长和说话速度的调整上，这样做能够使对话进行下去。)
For example, sleep duration has declined from some 8 hours in the 1950s to 7 in recent years.(例如，睡眠时间从20世纪50年代的8小时左右下降到近年来的7小时。)
By contrast, the audience encounters an opera or a play over a specific time, which is the duration of the performance.(相反，观众可以有一段具体的时间来欣赏话剧或者戏剧，这段时间就是表演的持续时间。)
