When he was wandering outside .he saw a old lady sitting on a low stool beside a blade grinder with a thick iron bar in her hands and she was abrading that iron bar back and forth dedicated.是什么意思_When he was wandering outside .he saw a old lady sitting on a low stool beside a blade grinder with a thick iron bar in her hands and she was abrading that iron bar back and forth dedicated.在线翻译_英语_读音_用法_例句