Some methods to improve the car-front structure were proposed,such as the lowering of the height of the bumper and the hood lead,the design of the front structure in stream line,and the increase of the vertical width of the bumper.是什麼意思_Some methods to improve the car-front structure were proposed,such as the lowering of the height of the bumper and the hood lead,the design of the front structure in stream line,and the increase of the vertical width of the bumper.在線翻譯_英語_讀音_用法_例句