The cytoskeleton is composed of microfilament, microtubule and intermediate filament, which have important biological functions.细胞骨架包括微丝 、 微管和中等纤维, 其在细胞中具有多种重要的生物学功能....
For her, books were as necessary to life as bread.对她来说，书就像面包一样，是生活必需品。Books are often stacked in higgledy-piggledy piles on the floor.书本经常乱七八糟地堆在地板上。New diet books appear at a rate of nearly one a week.新的饮食类书籍差不多一周出一本。...
该方法对此类型石英钟机心的设计具有一定参考价值.It analyses it's characteristics and also directs and summarizes such designing of quartz crystal clock movement.本文通过例证来提出三种24小时指示石英钟机心的设计方法,并对其特点加以分析.This article introduces 3 designed metho...
如一些哺乳动物(鲸等)一样从呼吸孔中喷出的潮湿的气.To spout moist air from the blowhole . Used of a whale.为避免在睡眠时溺水, 海洋哺乳动物保持对呼吸孔的控制至关重要.To avoid drowning during sleep, it is crucial that marine mammals retain control of their blowhole....
We caught her peeping through the keyhole.她从锁孔偷看时，被我们撞着了。Look! the child is peeping at us through the window.瞧! 那孩子在窗子里偷看我们呢.The moon was peeping out from behind the clouds.月亮正慢慢从云层后面出现....