The conversation between human and AI assistant.
How can I improve my pronunciation of English words?
Yes, I have difficulty differentiating between the two.
For the voiceless /th/ sound, like in the word "think," your vocal cords should not vibrate, while for the voiced /th/ sound, like in the word "this," your vocal cords should vibrate. Try practicing both and listening to the difference in sound. It may also help to watch videos or listen to native speakers and practice imitating them.