1·The researchers found that the dogs were able to pick the angry or happy face by touching a picture of it with their noses more often than one would expect by random chance.
研究人员发现，狗能够通过用鼻子触碰图片，来选择愤怒或快乐的面孔，其概率超过了人们对随机性的预期。
2·Putting on a happy face not only helps us make friends but also makes us feel better.
面带笑容不仅能帮我们交朋友，还能让我们感觉更美妙。
3·He also laughed. A happy face.
他也笑。一脸的幸福。
4·Happy has a happy face.
开心果有一张快乐的脸。
5·A happy face, what I can do except look.
在幸福面前、我除了仰望还能做什么。
6·We are happy to meet every happy face here!
我们非常高兴在这里看到每张笑脸！
7·A happy face live more somersault, happy to taste sweet.
快乐活面更筋斗，开心为馅味道甜。
8·You always put on a happy face and deny that you have any problems.
你总是表现出美好的一面而否认你有任何问题。
9·You use your finger to write a sentence sorry that I see a happy face.
你用你的指尖写了一句抱歉，让我看见幸福的脸。
10·I'd put on a happy face, but behind the scenes, my life was in turmoil.
台前我是满脸笑容，幕后呢，我的生活却是一片混乱。