每次让他离开时我都给他一个灿烂的微笑或一个小小的挥手，好像是为了让他相信我们正处于一个很好的状态。
Each time I kept him away from us by giving him a sunny smile or a little wave, as if to assure him we were in a good state.
有些研究者曾试过做进一步的研究，了解人类在微笑时的意识状态，我们认为是代表了幸福感。
Some researchers have tried to move deeper, to understand the states of mind that produce smiles.
儿童节到了，祝愿曾经是孩子的你：青春不老，保持一颗纯真的心，拥有甜美的微笑，孩童般的皮肤，无忧无虑的生活状态，对未来抱有幻想和憧憬！
Children's day is coming, wish you used to be a child: young, keep a pure heart, has a sweet smile, child-like skin, carefree life, fantasy and vision for the future!
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