1·For example, when we receive a smiling face from our friends online, we try to exchange our feelings by sending the same picture.
比如，当我们在线上收到朋友发来的笑脸时，我们会尝试着通过发同样的图片来交流感情。
2·Mom opened the door with a smiling face.
妈妈笑着开了门。
3·Instead, our results suggest that the successful dogs realized that a smiling mouth means the same thing as smiling eyes, and the same rule applies to an angry mouth having the same meaning as angry eyes.
相反，我们的研究结果表明，成功的狗，意识到微笑的嘴和微笑的眼睛是一样的，同样的规律也适用于生气的嘴和生气的眼睛。
4·Although it was disabled, it had a smiling face.
虽然它是残疾的，但它有一张微笑的脸。
5·When we want to say "Goodbye", we use a smiling face with a waving hand.
当我们想说“再见”，我们会微笑和挥手。
6·A smiling person brings happiness with them.
微笑的人把快乐随身携带。
7·A man without a smiling face must not open a shop.
没有笑脸的人不能开店。
8·I motioned to a smiling waitress and ordered a gin and tonic.
我向一位微笑的侍者示意，要了杜松子酒和香味饮料。
9·The most important thing to bring with you is a smiling face!
最重要的，是要带着一张微笑的面孔！
10·A smiling Chinese, for instance, may not be approving but somewhat embarrassed.
例如，中国人的微笑可能是表示某种不安而不是赞许。