Chapter nine provides a valuable recapitulation of the material already presented.

　　第9章對已經(jīng)陳述過(guò)的材料進(jìn)行了有價(jià)值的概括。

　　Many of our teachers also have valuable academic links with Heidelberg University.

　　我們的許多教師也和海德堡大學(xué)保持著(zhù)有價(jià)值的學(xué)術(shù)聯(lián)系。

　　The company does not accept liability for fragile, valuable or perishable articles.

　　公司對于易碎、貴重或易腐爛的物品不負責任。