A tower in Toronto, Canada, the tallest self-supporting man-made structure in the world when it was completed in 1976. It stands 553 m (1,815 ft) high including a 100 m (328 ft) communications mast.
CN from C anadian N ational (Railways).
英汉双解词典包含464360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。