I guess the difficulty you're having is pronouncing the "F" and "V" (since there is no V sound in 中文)? They are very similar because your mouth makes the same shape when saying file and vile. The difference is "f" is voiceless (air only) while "v" is voiced. Try saying "ah" and then place your teeth on your lips while doing so, it should make the V sound.

If you want to listen to the words being spoken youtube has a lot of videos for pronouncing words. This video is for file: https://www.youtube.com/watch?v=8IcjP5K_RlA This video is for vile: https://www.youtube.com/watch?v=vYjizw0BjRU

F with the soothing dipthong AE similar to mile. And vile the same the ile sounds phonetic like Kyle, dial, style etc...