1、vocal organ and physiology of vocalization
發(fā)聲器官與發(fā)聲生理

2、The progress in the function of vocal organ in songbirds in recent years is reviewed.
對近年在鳴禽發(fā)聲器官功能方面的研究進(jìn)行綜述。

3、The vocal organ was in itself a rich endowment;
那發(fā)育器官本身就是一種圓潤的天賦；