百思就是想了一百遍 形容想了很多遍或者很长时间 不得就是得不出 一般没有把这句话拆开理解的 也没有拆开用的

adj.缺乏力量或香味的, 缺乏特点或决心的 

我喜欢在吃饭的时候看报纸 如果你不打算在香港台湾生活或者去那里 你可以不学繁体字

come to China

Beijing is the best choice. Because Beijing dialect is almost mandarin. There is not so far from Beijing to Tianjin, you could get there by train only half an hour. Actually I think the coastal cities which close to Beijing are not as good as you image. The sea water is not very clean. And if you want to choose a place which you have listed above, i advise you don't choose Shanghai and Tianjin. I think よしや had said so clear.