qì / chē / qǐ / bù / shí / lí / hé / qì / zhuǎn / chā / fā / dòng / jī / de / shēng / yīn / tū / rán / biàn / dà / le汽车起步时离合器转差,发动机的声音突然变大了。The clutch slipped when the car started, and the engine suddenly got louder.