Finally, we need some means of igniting the mixture in the top of the cylinder.最后我们需用一些装置点燃汽缸顶部的混合气体.The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder.正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截...
目前，30%的爬行动物、鸟类和鱼类面临灭绝的危险。30 percent of reptiles, birds, and fish are currently threatened with extinction.这将导致马鹿的灭绝。It's going to be the death knell of the red deer.这次原油泄漏可能会使波斯湾的海龟灭绝。The spill could wipe out the Gu...
He did not want to be behindhand in generosity.他不愿在慷慨大方方面落于人后.His business faculty is small, and he is behindhand in his circumstances.他的经商才干有限, 他已捉襟见肘.Poor Dr Pegler got terribly behindhand with his appointments.可怜的佩格勒博...