primary strategy

💬 例句

1. Reducing vehicle speed is a primary strategy; aerodynamic drag increases exponentially with velocity, causing engines to consume disproportionately more fuel at higher speeds.

   降低车速是一项首要策略；空气动力阻力随速度呈指数级增长，导致发动机在高速行驶时消耗不成比例的更多燃料。