the “correct” sound in words is difficult, particularly for someone who has never compared ripe and underripe melons side by side.Watermelon
Tapping can therefore be an additional clue, but it should not be your only test.
Compare Sounds Rather Than Trying to Memorize One
If you want to use the tapping method, compare several watermelons in the same display.
Tap each gently in approximately the same place and listen to the differences.
Comparison can be more useful than expecting every good watermelon to produce an identical sound.Download Nature