The third, and most potent limitation is that it is not possible to be certain that the infant's response was due to the stimulus presented or to a change from no stimulus to a stimulus.(第三也是最有力的限制在于婴儿做出的是面对刺激的反应，还是从受到刺激到没受到刺激的变化，这是无法确认的。)
Lipotropin is a potent analgesic.(促脂素是一种有效的镇痛药。)
And the trend has a potent class dimension.(而且这一趋势的阶级特征显著。)
Credit is the carmakers' most potent marketing tool.(信贷是汽车制造商的营销法宝。)
Garlic is probably nature's most potent food.(大蒜可能是自然界最佳食品。)
Being praised by a boss can be a very potent motivator.(被老板表扬是一个强有力的激励因素。)
It's also potent in antioxidants and vitamins B and d.(而且野生鲑鱼中还富抗氧化物以及维生素b、D。)
Tacrolimus is probably as strong as betamethasone valerate (a potent steroid).(他克莫司可能与戊酸倍他米松一样有效（一种有效的类固醇）。)
The other half of the name represents another ingredient, less infamous, perhaps, but also strangely potent: the kola nut.(但名字的另一半——可乐果——代表了另一种成分，也许名声好些，但出奇地有效。)
Nature photography has become a potent tool in this struggle.(自然摄影在这场斗争中已经成为有力的工具。)
