relax your concentration/vigilance etcATTENTIONto reduce the amount of attention you give to something 使注意力松懈/放松警惕等relax your concentration/vigilance etc• Once they lose those bright feathers they can afford to relax their vigilance.• Take care not to relax your concentration on the way up. 2.• I forced myself to open my fingers, to relax my vigilance, to fall asleep.
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