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1·Such nationalistic adventures were of only momentary value to Velasco.

对贝拉斯科来说，这种民族主义冒险只有短暂的价值。

2·Whether a change stays with you forever or not, making a change has value, in the momentary joy you get from doing it, and in what you learn from it.

不管一次改变会不会永久跟随你，做出一次改变总会有价值，可能是你从改变中得到的一时的快乐或者你从中获得的新的认识。

3·The results show that during storm period, non - point pollution concentration and momentary toss are co - occurence with the peak value of runoff, their relations are very closely.

研究结果表明：暴雨期内，非点源污染物浓度及瞬时流失量与径流峰值几乎同步出现，它们之间存在着非常密切的关系。