风的作用对速度是种阻力。
沙尘中的细小颗粒只有在风的作用下才会漫天铺地。
Fine particles of dust do not simply lie around until they are blown away by the wind.
庆祝节日所生起的灶火在风的作用下蔓延开去，直到点燃整个城市。
The cooking fires lit to celebrate the feast day spread in the high winds until almost all the city was ablaze.
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