I could see by the working of his face that he was trying to think, and the process was so slow and laborious that, in my new-found security, I laughed aloud.

• 我从他面部肌肉抽动的样子可以看出，他在绞尽脑汁地思考。 看到他思考得那么慢，那么费劲，我仗着自己重新有了安全保障，放声哈哈大笑。