She and one assistant care for about nine hundred children ages four to eleven.

VOA: special.2009.08.13

her brothers were eleven and nine: unusually young actors, we might think, to be engaged in such high-flying philosophical debates as these two characters find themselves in.

分别是11岁和9岁，不寻常的小演员，我们可能会想，他们来演这雄心壮志的哲学辩论,是怎么样的。

耶鲁公开课 - 弥尔顿课程节选

If you decide to take this course, get a hold of the materials for next Tuesday, do listening exercises one and nine through eleven.

如果你选这门课,下个星期四准备好这些材料,做听音练习1和9到11

耶鲁公开课 - 聆听音乐课程节选

Nine-eleven on the United States on September 11 2001] for example a moral law that refused to allow the statesmen to protect the community in times of crisis would not be a principle of natural right it would be a suicide note.

举，911，为例,一部道德法],拒绝允许政治家,在有危机时适切地保护其社群,那就不是自然权利的原则,而是部自杀式的批注。

耶鲁公开课 - 政治哲学导论课程节选

They tend to be just triads whereas in classical music we can have a triad but we can also add a seventh note with one,three,five,seven,nine,eleven, that kind of thing.

流行乐一般只用三和弦，但是古典乐可以用三和弦,也可以在上面加上七音，一，三，五，七，九，十一，诸如此类的。

耶鲁公开课 - 聆听音乐课程节选

And you went ahead and worked with the Listening Exercises nine through eleven to engage the musical instruments a bit in those particular exercises, and we have performers here today that are going to, as you can see, demonstrate some of these instruments for us.

你们先前做过,听力练习九至十一题,在这些练习中,你们增长了对乐器的一些认识,今天我们请来了表演者,你们将看到,他们稍候,将为我们在这里演示一些乐器

耶鲁公开课 - 聆听音乐课程节选