台灣 : 攝氏一度 中國 : 一攝氏度 另 台灣 : 華氏一度 中國 : 一華氏度

一 摄[shè] 氏[shì] 度[dù] or 一度 in Mandarin。 Chinese character "一" changes its tone under different situations. If it is a falling tone after yi,yi changes into a rising tone,sounds like "yí". So we say yí shèshìdù, or yí dù in Mandarin.

Do you mean how to pronounce it? I would say "one degree" - since I live in a country where we exclusively use C. If I was being more explicit (e.g. to an American) I would say "one degree C" or "one degree Celsius"

零上一度。 这是比较口语化的说法。

http://news.hk.msn.com/international/article.aspx?cp-documentid=5700111 所言 與台灣實際情況有別