He stiffens in momentary panic.他心里一阵惊慌,浑身不自在起来.Our resolution stiffens.我们的决心加强了。Canvas stiffens as it dries.帆布干时变硬.Heating the foam stiffens it and forms it.暖气泡沫stiffens它和形式....
The language of Darwin was intelligible to experts and non-experts alike.达尔文的语言无论对专家还是非专业人士而言都明白易懂。He mistakenly ascribes the expression "survival of the fittest" to Charles Darwin.他错误地认为“适者生存”是查尔斯·达尔文说的。the theory of na...