We should revise our protectionist practices in trade, and promote free trade and competition.
我们应该修改我们的贸易保护主义做法,推广自由贸易和竞争。
Even if one didn't know from concrete examples (the 1936 Olympic Games, for instance) that international sporting contests lead to orgies of hatred, one could deduce if from general principles.
一个人即使不能从具体的事例(例如1936年的奥林匹克运动会)了解到国际运动比赛会导致疯狂的仇恨,也可以从常理中推断出结论。