pronouncing

I have been studing pronounce English recently. Now, I think I can know how to speak some words better. But have a lot of sound have the same sound, example "u:" and "ʊ". Difficult to spell it so I can pronounce them with the same sound?

Pronunciation (pronouncing)

I have been studying (studing) how to pronounce English recently. Now, I think I (can) know how to speak some words better. But a lot of words have similar sounds (have a lot of sound have the same sound), example "u:" and "ʊ". Difficult to spell it so can I (I can) pronounce them with the same sound?

I am not sure which sounds you believe are similar. You mention 'u' and 'v'? However, these are different - 'U' as in umbrella.......'V' as in van  or vast.

pronouncing

I have been studying pronounce English pronunciation recently (note 'pronunciation is 'nun' not 'noun'). Now, I think I can know how to speak some words better, but have a lot of sound have the same sound, example "u:" and "ʊ". It's difficult to spell it(?) write using the phonetic alphabet so  I  can I (a question has a different word order) pronounce them with the same sound? (not sure quite what you mean here)

Do you mean as in "ʊ" [Foot, good, full, woman]; "u:" [Goose, food, fool, soon, chew, do]  - they are quite different!

Try the differences as heard in Foot, Food, Feud (juː)