1. Can toothpaste treat oral cavity disease really? 牙膏真的能治疗口腔疾病吗？
2. Only by continuous practice, can we learn oral English well. 只有不断的练习，我们才能学好英语口语。
3. Sometimes oral forgetting, is the innermost feelings waiting! 有时候口头的遗忘，是内心的等待！
英英解释
n.
1. an examination conducted by word of mouth
2. using speech rather than writing
3. of or relating to or affecting or for use in the mouth
4. of or involving the mouth or mouth region or the surface on which the mouth is located
5. a stage in psychosexual development when the child's interest is concentrated in the mouth; fixation
