Somechildrendisplayanunquenchable难以抑制的curiosityabouteverynewthingtheyencounter.
A、insatiable贪的无厌的The flower bud of a water lily 百合 opens at sunset since .its opening is triggered(commence) .by the decreased light.
Solidgeometryhasenabledastronomerstocalculatethepositionsoftheheavenlybodiesrelativetooneanother.
In1861itseemedinevitablethattheSouthernstateswouldbreakawayfromtheUnion.
Urban renewal programs strive to upgrade areas that are becoming slums.
Cream of tartar 酒石 , a weak acid, can be added to egg whites to help them foam泡沫 when they are beaten
