Insectpestsareamongtheleadingcausesofcropfailure.
A、expectedThecompanyissuesanannualreporteveryMarch.
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
Despitetheproliferationofotherfastermodesoftransportation,therailroadsremainthelargestcarriersofintercityfreightintheUnitedStates.
Bythenineteenthcentury,embroideryonmen'sclothinghadvirtuallydisappearedexceptfortheoccasionaldecorativevestandtie.
Inliterature,caricatures讽刺画usuallycontainverbalexaggerationthroughwhichthewriterachievescomicandoftensatiric讽刺effects.
