She had had to speak guardedly and the agent had rung off without comment.

她不得不小心翼翼地说话， 而代理人没有发表任何评论就挂掉了。

And the telephone was rung off.

并且电话被拉断了。

Dick had rung off at this point--perhaps that was a piece of ingratitude for he needed grist for the grinding activity of his mind.

迪克此时已经挂掉了——也许这是一种忘恩负义，因为他需要谷物来缓解他头脑中的磨砺活动。