The engine started quickly,to my relief,but loudly,roaring to life and then idling at top volume.

分类: 作业答案 • 2022-05-24 13:48:13

问题描述：

The engine started quickly,to my relief,but loudly,roaring to life and then idling at top volume.
此句中roar和idle为什么用ing形式?

答

此句中roar和idle为什么用ing形式?是因为用动词表示主句的伴随状态.比如,
He rushed into the room,crying.他哭着冲进屋子.
原句中的roaring 和 idling 是说明 engine started 时的情形.