牙发生

1.odontogeny  2.dentification  

牙的英语翻译：

cuspid; tooth; tooth-like thing; tusk
【医】 dens; dent-; dental ivory; dentes; denti-; dento-; odont-; odonto-
teeth; tooth

发生的英语翻译：

happen; generate; occur; take place; engender; exist; go forward; go on
originate
【医】 genesis; occurrence