在花园里挖土的最好工具是铁锹.The best implement for digging a garden is a spade.她到处走, 又挖土,又锄草.She went from place to place, and dug and weeded.他的手掌因干挖土的活儿而磨破了皮.His palms were excoriated by the hard labor of shoveling....
Those flights often were done in a two - engined Lockheed 12 airplane.这些航班往往是做一两个引擎洛克希德12飞机.Piston - engined aircraft and turboprops have air compressors to maintain cabin pressure.活塞发动机和涡桨发动机的飞机有压气机来控制客舱的压强....a petrol-...