Some animals pant and sweat to speed evaporation of body moisture and thus cool themselves.
A、wiggle摆动slowlyD
暂无解析
The Native American interpreter Sacajawea was a valuable member of the Lewis and dark expedition in 1805.
WhileBillieHolidaydidnotinventthemusiccalled"theblues",shemostassuredlyhelpedpopularizeit.
Whencarbonisaddedtoironintheproperproportions,theresultissteel.
Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.
Withlasersscientistscanprobemanyphysicalprocesses,suchascombustion,oncebeyondourken.视野
