four stroke的用法和樣例：
例句
- When the exhaust stroke starts, the cylinder is swept out by the upmoving piston.
當排氣衝程開始時，氣缸被向上運動著的活塞刮掠。
four stroke的相關資料：
臨近單詞
Fourier
four
four thousand nine hundred and ninety one
four thousand two hundred and forty three
four thousand two hundred and sixty eight
four thousand four hundred and sixty nine
four thousand five hundred and fifty nine
four-- concentric-- spheres model
four thousand six hundred and fifty eight
four-step traffic demand forecast model
four thousand six hundred and twenty five
four thousand four hundred and twenty one
