So your TA might take a minute, so be patient with them if they see your structure and they say oh, no, no, no, no that's wrong, that's terrible, and they don't immediately know why.

因此助教可能需要一点时间，如果他们看到你画的路易斯结构以后说,噢，不，不，不，不，这是错的，错得离谱，而他们却不能立刻说出错在哪。

麻省理工公开课 - 化学原理课程节选