问题描述：
about the combining vowel
combining vowel(usually o )that links the root to the suffix or the root to another root.
e.g.gastr/o gastrotomy(-tomy)
gastrectomy(-ectomy)
why does gastrectomy lack of the combining vowel?
combining vowel(usually o )that links the root to the suffix or the root to another root.
e.g.gastr/o gastrotomy(-tomy)
gastrectomy(-ectomy)
why does gastrectomy lack of the combining vowel?
问题解答：
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