There was a talk by an oil worker.
那是一个石油工人的讲话。
The worker bathed machine parts in the oil.
工人把机器零件浸入机油中。
The old worker emerged from under the car, his hands dirty with machine oil.
老工人从小车底部钻了出来，他的手沾满了机油。
The old worker emerged from under the car, his hands dirty with machine oil.
老工人从小车底部钻了出来，他的手沾满了机油。
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