Hey, man. I think it depends on what do you plan to do. From my point of view, you're right. Basically it's not that important for a foreigner to be able to write every characters you know. Speaking and reading is much more important than writing by hand. Writing might not be the key of communication. We write by hand much less than before, especially in work and formal moments, because of the using of computer. The funny thing is we frequently forget how to write some easy characters while holding a pen. By the way, you could easily find an assitant if it's necessary. One tip, practice your signature in Chinese, that would be helpful. Have a nice day.

用“其中”的一个例子

我不太清楚“其中”的用法。特别是词序。下面的句子都用这个单词。

1. 我学校的老师都是外国人，其中十个来自北美洲。        正确
2. 这些学生的其中三个是韩国人。      这些学生，其中三个是韩国人。
3. 这些学生的一半是亚洲人。               这些学生中一半是亚洲人。
4. 一半的这些学生是亚洲人。               有一半的学生是亚洲人。
5. 这些学生的其中一半是亚洲人。      这些学生有一半是亚洲人。
6. 我来中国的原因很多。其中，我的工作是最重要的一个原因。     

Are these numbers correct?

23450000 er wan San Bai si shi wu long                                            er qian san bai si shi wu wan
34427880 san wan si bai si shi er qi qian ba bai ba shi                  san qian si bai si shi er wan qi qian ba bai ba shi
55567887 wu wan wu bai wu shi Liu qi qian ba bai ba shi Wii      wu qian wu bai wu shi liu wan qi qian ba bai ba shi qi
45560000 si wan wu bai wu Liu ling                                                     si qian wu bai wu shi liu wan
45456700 si wan wu bai si shi wu liu qian qi bai                               si qian wu bai si shi wu wan liu qian qi bai

刷新 means get a new record, break the one before. So I think the FIRST one is correct. But this sentence is easy to misunderstand, because it looks like just part of a whole sentence. If we make it more fully, the meaning would be more accurate. For example: 1.美元指数刷新一周高位94.96达到100（means get a new record 100） 2.美元指数刷新一周高位达到94.96（means get a new record 94.96） I hope it could help. But sorry for my English, it really sucks.

在夏天喝咖啡吗？

大多數的時候我非常喜歡喝咖啡。我平常喝美式咖啡，但是我覺得这里的美式咖啡不是真的美式。其實这里的美式咖啡其實就是義意式咖啡加熱水(interesting idea)。美國人常常只喝滴漏式咖啡。我剛才來了到亞洲的时候，就開始喝美式咖啡。，因為在這裡滴漏式咖啡不太紅。
我平常喝熱的咖啡，但是現在台北天氣已經變化得更暖和了，我怕喝熱的。那样我會辛苦的又边喝又边流汗。
我還不太喜歡喝冰的咖啡，而且但是現在我開始喝多紅牛。紅牛也冰的，也有咖啡因，又要能給我翅膀( you mean it gives you power? Really good metaphor. You also could say 还能给我能量)。