大多数高等数学竞赛的训练都是在正常上学时间之外进行。
Most of the training for advanced-math competitions happens outside the confines of the normal school day.
当然，探讨一个军备竞赛的最佳时间是在它真正成熟之前。
The best time to talk about an arms race, of course, is before it really gathers steam.
竞赛将于2013年1月开始，持续时间为30天。
应用推荐