1.If you see me with a dumpish expression on my face, please don't feel strange. I am just hesitating a little.
如果你在我的脸上看到忧郁，请不要觉得奇怪。我只是有点犹豫不决。
2.Now manga has been developed as a big industry, which is popular with many people, although it had been thought as naive and dumpish.
原本被人认为简单、幼稚的动漫现在已经发展成为一项不可忽视的产业，受到全世界越来越多人的关注。