As the elevation dropped the air heated and the scents of dry brush, dead leaves, and deliberately-set fires filled the car.
海拔使得热空气下降，混合着干燥的灌木、枯树叶和人为设立的火堆的气味充斥了整个汽车。
2
During this joint training, we have been learning specific techniques to help us brush up on our skills; it will also bring us a marked improvement for air defense capability.
在这次合同训练中，我们学到了那些能够提升我们技战术的方法；这也将为我们的空中防卫能力带来显著提高。
3
A week with dry compressed air or a copper brush cleaning machine back condenser more than once.