The defenders struck back at the aggressors. 侵略者遭到反抗者的反击。
用作形容词 (adj.)
It revolutionized the butterfly and back stroke and now free style advanced and is one of the most effective tools to building momentum off the start and turn. 它使蝶泳，仰泳和自由泳得以发展和改革，是出发和转身后创造推进力的最有效的手段之一。
