Here he gave the stick a slight shake, and looked firmly in the various eyes around to see that before proceeding further his listeners well grasped the subject at that stage.

说到这里，他轻轻摇了摇手杖， 然后坚定地看着周围各种各样的眼睛， 看看在继续下一步之前， 他的听众已经很好地掌握了那个阶段的主题。