只需要很小的一滴就可以了。It's only necessary to use just a very small blob.即使是很小的早产儿也会对母亲的出现做出反应。Even very young premature babies respond to their mother's presence.你从很小的时候就对下棋产生了浓厚兴趣。You've had chess on the brain sin...
食道的后端是嗉囊.At the posterior end of the oesophagus is the crop.结果表明, 嗉囊、腺胃和肌胃内食糜pH随 日龄逐渐增加,而小肠内食糜pH随 日龄变化不大.Chyme pH in crop, proventriculus and gizzard increase gradually with age....