ch.

The uvular r's of French and the fricative, glottal ch's of German (and Scots) are essential to one's imagination of these languages and their speakers.

听到法语的小舌音、摩擦音，或者德语（和苏格兰语）的喉音，就会对语言本身和语言的使用者产生各种想象。

Conclusion Cerebroprotein hydrolysate conta ins abundantly essential amino acid and small molecular peptid to human brain wi ch can inprove functional activation of human brain cells .

脑白水解物富含脑必须氨基酸及小分子肽，能改善脑细胞功能活性。