Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
更新时间:2024-11-24 02:30:46 A、wiggle摆动slowlyThefearofsmallpox,whichterrorizedtheeighteenthcentury,hasnoanalogy(likeness)today.
In calculating the daily calorie requirements for an individual, variations in body size, physical activity, and age should be taken into account.
In1861itseemedinevitablethattheSouthernstateswouldbreakawayfromtheUnion.
With lasers scientists can probe many physical processes, such as combustion, once beyond our ken.视野
Some children display an unquenchable 难以抑制的 curiosity about every new thing they encounter.