There are precautions that do not use the short vowel to vowel length, even if it has the same spelling was not considered a touch pool, such as not touching the Chinese masses to climb the pool Tin.
Caution: Do not use short vowel with a long vowel. Although it is not considered to have the same spelling as inedible assonance assonance with Chinese shipbuilder foot climb.
Caution that don't use short vowel in contact with the long vowel. Although it is not considered a hug the same spelling, such as eating, not swimming with climbing the Chinese foot.