Because their nerves are deadened from being so stupid.
那是因为她们太笨 所以神经都死掉了。
This result reached, the Lodges thought their moral improvement required a visit to Berlin; but forty years of varied emotions had not deadened Adams's memories of Berlin, and he preferred, at any cost, to escape new ones.
达到这个结果后,洛奇夫妇认为们道德提升需要访问柏林;但是十年各种情绪并没有使亚当斯对柏林记忆变得麻木,宁愿不惜一切代价逃避新记忆。