drivetrain发音名词1传动系统、动力传动系统The new hybrid drivetrain delivers more power and uses less fuel.这套新的油电传动系统动力更强,也更省油。2传动组件自行车Clean your bike's drivetrain regularly to keep the gears shifting smoothly.定期清洁自行车的传动组件,变速才会顺畅。用这个字练口说→