交通运输工程
螺旋桨圆
Opened in 1928, the plane simply rotates in a circle powered only by its noisy propeller.
BBC: Europe??s grand old theme parks
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。