当你头一次乘飞机时,会觉得这个装满了人和行李的大家伙应该飞不起来。重家伙应该待在地上才对,尤其是像飞机这样特别重的家伙。但是,不必担心飞机,看看飞来飞去的鸟儿,它们挺重的,却有办法待在天上。鸟儿能飞,是因为利用了一个大自然的小窍门。你一定见过飞机两侧伸出的长东西,那叫机翼;如果你坐过飞机,也会知道,起飞之前飞行员会把飞机开到一条长路的尽头,那条路叫跑道;然后,飞机调过头,沿着跑道疾驰起来(对我来说这是整个旅行中最令人激动的部分)。 When you fly for the first time, you’ll find the big guy, full of people and luggage, should not fly. Heavy guys should stay on the ground, especially when it comes to a particularly heavy guy like an airplane. But do not worry about planes, look at flying birds, they are heavy, but there are ways to stay in heaven. Birds can fly because of the use of a nature’s trick. You must have seen the long things on either side of the plane, called the wings, and if you’ve been in the plane, you know that before the takeoff, the pilot will take the plane to the end of a long road called the runway. Then, The airplane turned over and gallopped along the runway (to me it was the most exciting part of the trip).