旗袍为什么叫cheongsam

长衫，来源于广东话的发音

为什么采用广东话的发音我就不知道了，但是词典上确实是这么解释的。可能最早是从广州流传到欧美地区的吧，虽然起源于北方，但是那时可能还没有对应的英文称呼。

下面是金山词霸上面的解释，你仔细看最后的一部分，关于普通话和广东话的：

cheongsam

[`tFR:N`sAm]

汉n.旗袍

cheongsam

cheong.sam

AHD:[chông”s\adie/m“]

D.J.[7t.%806s$8m]

K.K.[7t.%06s$m]

n.（名词）

A long dress with a high collar and slit skirt, traditionally worn by Chinese women.

旗袍：中国女性传统上所穿着的高领开衩裙式连身服饰

Chinese (Cantonese) ch'e¿ng shaam [long gown]

Chinese (Cantonese) ch'e¿ng shaam [long gown]

equivalent to Chinese (Mandarin) cháng [long]

equivalent to Chinese (Mandarin) cháng [long]

Chinese (Mandarin) sh³n [gown]

Chinese (Mandarin) sh³n [gown]

cheongsam

cheong.sam

AHD:[chông”s\adie/m“]

D.J.[7t.%806s$8m]

K.K.[7t.%06s$m]

n.

A long dress with a high collar and slit skirt, traditionally worn by Chinese women.

Chinese (Cantonese) ch'e¿ng shaam [long gown]

equivalent to Chinese (Mandarin) cháng [long]

Chinese (Mandarin) sh³n [gown]

书上明明写旗袍叫cheongsam 那为什么有的写qi-pao?这两个有差别么?

cheongsam来自于粤语中的“长衫”,所以是外国人把粤语发音音译过去成了英语单词

qi-pao就简单了,就是汉语拼音,是外国人根据普通话发音音译过去的

意思都是一样的

Oipao是旗袍英语吗

“旗袍”在英语中有一个固定的词，不过是一个loanword，外来语，写做cheongsam，是从广东话Cantonese里来的。也可以拼写为qipao或者chipao：

The cheongsam is a body-hugging one-piece Chinese dress for women; the male version is the changshan. It is known in Mandarin Chinese as the qipao or chipao, and is also known in English as amandarin gown.

旗袍是中国一种紧身的连衣女子服饰，男子的被称为长衫。英语中也用mandarin gown来表示这种服饰。