1、Blowby is a common issue in older engines that may indicate worn-out piston rings.
老旧发动机中的吹气现象是常见问题，可能表明活塞环磨损。

2、Excessive blowby can lead to increased oil consumption and decreased engine performance.
过多的吹气可能导致油耗增加和发动机性能下降。