But, the reaction says I need twice as much mag as tickle if this reaction is going to go to completion.

但是这个反应告诉我们,镁的量应该是四氯化钛的两倍,如果要反应完全的话。

麻省理工公开课 - 固态化学导论课程节选

Why don't we go ahead and take a 5-minute break and I'll let this one run to completion.

下面我们先休息5分钟,等它们执行完毕。

哈佛公开课 - 计算机科学课程节选