Here's why:
* Short vowel sound: The "u" in "jug" has a short vowel sound, similar to the "u" in "cup" or "sun."
* Long vowel sounds: Long vowel sounds are typically represented by a vowel followed by a silent "e" at the end of a word (like "mate") or a double vowel (like "moon").
Let me know if you have any other words you'd like to check!