A larger number of budlike protuberances form and are pinched off to give microcells.大量芽状突出物形成,并被脱出以获得微细胞.The diseased trees are marked by protuberances on their bark.有病的树木可由其树皮上的结节看出.One of the natural protuberances on ...
He died, literally , at the chalkboard at age 83.他过世了, 83岁的时候, 在黑板前.Then one morning we were working math problems at the chalkboard.后来有一天早晨,我和玛丽在黑板上写下了数字题目.The map was drawn on chalkboard with ink - markers.那张地图用记号笔画在一块...