定期航班的数量正让空中交通指挥系统不堪重负。The volume of scheduled flights is straining the air traffic control system.我留下一名中士指挥，自己策马前去侦察敌情。I left a sergeant in command and rode forward to reconnoitre.他还在为可采用的进近航线与指挥塔台争执不下。He is still bicker...
Figs have male and female flowers.无花果有雄花和雌花。Try eating reconstituted dried prunes, figs or apricots.试着吃些用水泡过的西梅干、无花果干或杏干。The results in Figs. 4 and 5 show the excellent agreement between simulation and experiment.图4和图5的结...