Observe how the vowel changes by moving the emphasis:

Press the buttons orange, to identify the sound you hear corresponding to the asterisk on the light blue button, of the word you hear.
But not only by the ear, record your imitation and let yourself decide when you say it.
Clicking on the buttons You can see the profile of what it says, record and compare, using Praat.

• With buttons light blue you can hear the associated pronunciation.
• With buttons You can watch videos from YouGlish.com Remember the facilities that it offers.
• With the links to the dictionaries you can verify the words.