And in this case we have three choices here in terms of what's going to be in the middle, so we need to decide that first.

而这种情况下对于哪个原子,在中间我们有三种选择，这是我们首先要确定的。

麻省理工公开课 - 化学原理课程节选

Faced with this tension, there are three possibilities.

面对这种矛盾,你有三种选择

耶鲁公开课 - 心理学导论课程节选

Player II has three choices, this game is not symmetric, so they have different number of choices, that's fine.

参与人II有三种选择,这个博弈不是对称的,所以他们可选策略数量不同,这无所谓

耶鲁公开课 - 博弈论课程节选

Player II has three choices left, center, and right, represented by the left, center, and right column in the matrix.

参与人II有三种选择,左中右,用矩阵的左中右三列来表示

耶鲁公开课 - 博弈论课程节选