"Anytime anyone is sleeping outside, particularly in West Africa which is very well known for its malaria, you are clearly exposing yourself to that disease and other diseases,".

VOA: standard.2009.09.08

So, you already have a hint that methyl groups are never in the middle, they always have to be on the outside.

那么，你已经得到了一个提示,那就是甲基永远都不可能在中间，它们总是在外侧。

麻省理工公开课 - 化学原理课程节选

So you are allowed to pray outside in Judaism.

所以犹太教是允许在户外祈祷的咯？

普林斯顿公开课 - 人性课程节选