Both melody and bass could have had a triplet but he chose to have the duple in the bass--the triple up above.

旋律和低音部都可以运用三连音,但是他选择低音两拍,高音三拍

耶鲁公开课 - 聆听音乐课程节选

And let's have a look at the movies concerned here and we'll draw there's three possible movies.

我们来看看有哪些影片在上映,我画一下表格,有三部电影在档期

耶鲁公开课 - 博弈论课程节选

Beethoven could have made that bass go with triplets too.

贝多芬本可以把低音部也改成三连音

耶鲁公开课 - 聆听音乐课程节选

And they've decided to go to the Criterion, or the local movie house, and there were these three movies showing, and they're all excited about going to this movie except being Economics majors and not very good at dating, they have forgotten to tell each other which movie they're actually going to go to.

他们想要找一家电影院约会,当时这三部电影正在上映,他们想到要一起看电影都很兴奋,虽然那些经济系的木头不太会约会,他们忘了告诉对方,去看哪一部影片了

耶鲁公开课 - 博弈论课程节选