car coupler的用法和样例：
例句
- Before the driver dove into the water to hook the car up to his truck, he asked Ewing to hold his dentures.
这名司机在将拖吊车开到河边，把落水车钩上他的卡车之前，要求尤恩拿著他的假牙。 - The conditions and contents of the new inspection,maintenance and operation code for coupler draft gears in the Russian Federal Railway are described.
介绍俄罗斯联邦铁路采用新的车钩缓冲装置的检修和运用规程的情况及规程的内容。
