关于saliva的百科

• saliva造句怎么写

• Salivaissecretionofthesalivaryglands.Digestionbeginsinthemouthwiththeactionofsaliva.Foodexpertssay,vegetablejuicedrink,squeezecouldaffectthesecretionofsalivadigestiveenzymes.Thisisapalette-cleansingpre-dinnerdrinkthatworksbecausethedrynessoftheginsti...
• 2017-12-025841