1.By the way, in British English " mustache, " like a lot of words, is spelled slightly differently;there's an " o" in the word – (mou) instead of just (mu).

顺便， 在英式英语中， “mustache” 和多单词样，拼写有同； 单词中有个“o” ——(mou) 而是 (mu)。机翻