Metamorphosis of an insect may be ametabolous hemimetabolous, or holometabolous. Neuroendocrine and endocrine secretions control metamorphosis.昆虫的变态可以是无变态型、渐变态型, 不完全变态型和完全变态型. 神经分泌和内分泌控制变态行为....
The author defends herself against charges of racism by noting that blacks are only one of her targets.面对种族主义指控，作者替自己辩护说黑人只是她的抨击目标之一。The army defends the people from harm.军队保护人民免遭伤害.But it might make some unpleasant talk...
你应装双层玻璃以免散热.You should ensure against loss of heat by having double glazing.他摇下窗子来散热。He wound down the windows to dissipate the heat.我们的身体能出汗，由此可以蒸发散热。Our bodies can sweat, thereby losing heat by evaporation....