The boy even insisted upon doing the work of their cabin steward, since, as he explained, his grandmother was suffering from a nervous disposition that made the presence of strangers extremely distasteful to her.

男孩甚至坚持要做他们客舱服务员的工作，因为正如他解释的那样，他的祖母患有神经质，这让她对陌生人的存在极为反感。