求翻译：每个人都会微笑，但微笑也有更深层的含义，比如，有苦笑，有因为伤心却不想让人知道而强装微笑的苦衷，有遇到真正开心的事所露出来的甜蜜微笑，也有遇到不熟悉的人所露出的敷衍微笑，总的来说，微笑也是一门技术，掌握它对你的人生也会有所帮助的。是什么意思？

正在翻译，请等待...

正在翻译，请等待...

Each person can smile, but smiles also has in-depth meaning, for instance, has the forced smile, has but because sad does not want to let the human actually know the strong attire smile difficulties, has meets the happy smile which the true happy matter reveals comes out, also has meets is perfuncto

Everyone will smile, but smile also has more deep of meaning, such as, has wry smile, has because sad but do not want to let people know and strong loaded smile of difficulties, has encountered real happy of thing by showed to of sweet smile, also has encountered does not familiar with of people by