Insect pests are among the leading causes of crop failure.
A、expectedB
暂无解析
Thefirstpaperwasmadefromthebarkofthemulberrytree.
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Foodmustbemoistinordertohaveataste.
DoubleEagleinthefirsttransatlanticballoon,wasgreetedbyavidcrowdsinFrance.
Whencarbonisaddedtoironintheproperproportions,theresultissteel.
