There was a whine of hydraulics as the undercarriage locked into position.随着液压系统嘎吱一声响，起落架进入了锁定位置。The undercarriage on light aircraft does not always retract in flight.轻型飞机飞行时起落架不一定缩回.A kind of cutter undercarriage mechan...
There are many salmons inside this river.这条河里有许多鲑鱼.Hundreds and hundreds of salmons leap up the falls.数以百计的鲑鱼跳向瀑布.Come on. Help yourself to some salmons. It's tasty.来, 吃点儿鲑鱼, 很好吃的....
他正挥手以引起他们的注意。He was waving his arms to draw their attention.学院的老师们抱怨说他们的学生还很不适应大学的课业。Faculty members complain that their students are unprepared to do college-level work.马克走在前面，听不见他们的声音。Mark was out of earshot, walking a...