基本解释n.小間斷同根派生 diastem相关词英汉例句Objective To explore how to regain artistic of diastem of anterior teeth extraction of adult orthodontic. 結論:該方法對成人正畸時前牙區拔牙間隙的臨時性脩複不失爲一種有傚而可行的方法。diastem更多例句