他们又是跳绳，又是玩接球，等着上课铃声响起。They skip rope and play catch, waiting for the bell.跳绳是最有乐趣的有氧健身运动之一。Skipping is one of the most enjoyable aerobic activities.外面孩子们一边跳绳一边唱着歌。Outside, children were skipping and singing a rhyme....
煤气柜: 容器气体是储存.Gas tank: container where gas is stored.通过失重挂片及电化学极化曲线测量,查明并分析了湿式煤气柜水封部位发生腐蚀的主要原因.The corrosion case analysis of a water sealed gas tank loss test and potentiodynamic polarization measurement....
After several reverses the enemy was forced to retreat.几次失败后敌军被迫后撤.Perhaps because of these reverses Mailer temporarily abandoned fiction.或许正是由于这一失败,梅勒暂时放弃了小说创作.Alternating current reverses from negative to positive abou...