She put the letter into her pocket and offered her visitor a smile of welcome, exhibiting no trace of discomposure and half surprised at her coolness

• 她把信塞在口袋里，向客人发出了欢迎的微笑，没有泄露一丝心绪不宁的痕迹。对这种镇静，她自己也有些吃惊。