他怀疑地看了那手两三次，似乎要肯定它确实在那儿，然后放下了工作，把手放到自己脖子上，取下一根脏污的绳，绳上有一块卷好的布。

• After looking doubtfully at it, two or three times, as if to be sure that it was really there, he laid down his work, put his hand to his neck, and took off a blackened string with a scrap of folded rag attached to it.