机械故障1

　　A:What’s happened? Is there a problem?

　　A:怎么了？有问题吗？

　　B:I think the gears have seized up

　　B:我想齿轮可能不转了。

　　A: You'll have to dismantle the unit and lubricate the bearings. Do it as quickly as you can but make sure you top up the oil before you start the motor up again.

　　A:你必须拆掉这个部件润滑一下轴承。你尽快做，在启动发动机之前一定要加满油。