It takes amazing concentration and focus to guard him, because if you have even a momentary lapse in concentration, he will beat you.

防守科比你必须高度集中注意力，因为你稍有松懈，他就会给你致命一击。

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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。

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The prosecutor said it was not a case of dangerous driving but "very much a case of momentary loss of consciousness and concentration".

BBC: Sir Ranulph Fiennes fined over car crash in Stockport