The victorious army demanded unconditional surrender.胜方要求敌人无条件投降。Meanwhile, the differences between the conditional extremum and unconditional extremum in concept and evaluation are pointed.同时还指出了条件极值和无条件极值在概念上及求法上的一些区别....
轻型飞机飞行时起落架不一定缩回.The undercarriage on light aircraft does not always retract in flight.男孩看见那条蛇吓得猛地缩回.The boy started back in fear when he saw the snake.但是现在要缩回来当然为时已晚.But it was too late then, of course, to back out....
A carnivorous diet is more appetising than a vegetarian one as the former contains more protein.荤食比素食更可口,因为前者含有更多的蛋白质....a divine mixture of vegetarian cheeses bound with egg.素干酪和鸡蛋黏合在一起的绝妙搭配She is an avowed vegetarian.她...