We can assure you that our products are the most outstanding ones on the market today, and we offer a five-year guarantee.
我们可以向您保证我方产品是当今市场上最好的,并且可提供5年保修期。
This increases their air-resistance and reduces the shock of impact when they hit the ground.
这样就加大了空气阻力,并减少了它们着地时冲击力带来的震动。