Tom: I think it is a short vowel.

汤姆：我认为这是一个短元音。

Is this a long vowel or a short vowel?

这是一个长元音还是一个短元音？

Long vowels are clearly distinct from short vowels since every short vowel, every single one, has a doubled consonant after it.

长元音与短元音泾渭分明，因为每一个短元音后都双写了辅音。

If in English pronunciation's short vowel, consonant cluster, by the fricative, the affricate conclusion syllable and so on do not have in Chinese.

如英语语音中的短元音、辅音连缀，以摩擦音、破擦音收尾音节等在汉语中都没有。

From the comparison we can know that they are not same. The long vowel and short vowel in Archaic Chinese and in Burmese in Burmese Character Times haven't regard at embryology.

但通过比较可看出，缅文以至整个藏缅语族的长短元音和汉语的长短元音是不同的，汉藏语系各语言的长短元音可能没有发生学上的关系。