She left, went far away, came all the way back a month later, and once again, got an audience with Gandhi.

她离开，长途返回，一个月后又回来，再次与甘地见面。

哈佛公开课 - 幸福课课程节选

Memory cells are long lasting cells that remember this exposure and can respond very quickly on second exposure.

记忆细胞可以长时间记忆与抗原的接触,并在再次免疫中迅速做出应答

耶鲁公开课 - 生物医学工程探索课程节选

So we're going to listen now to the end of Strauss's Death and Transfiguration, and again we've got the idea of the octave, then the fifth, then the fourth.

我们下面会,听施特劳斯的死亡与净化直至结束,我们再次了解了八度音阶,然后是第五音阶,第四音阶

耶鲁公开课 - 聆听音乐课程节选