【简答题】将以下英文翻译成汉语。 An engine has many working parts. The main parts are known as the connecting rods, crankshaft, valve, gear, fuel system and cooling system. Gasoline engine also has an ignition system.
【简答题】请将以下英文翻译成汉语。 Business class country code Return ticket One Way ticket Cardholder Expirationa Date Payment Type Household Register Passport Contact Name