1、 The oral opening in an earthworm is small、蚯蚓的口是很小的。
2、 oral的解释
3、 An oral agreement is not enough; we must have a written promise、只有口头协议是不够的；我们必须有一个书面承诺。
4、 oral
5、 She passed her orals、她通过了口试。
6、 We're having an oral test in class this week、这星期我们班有一次口试。
7、 He passed his German oral exam、他通过了德文口试。