Word: 飞速 (fēisù) Traditional: 飛速 飞速 dictionary entry fēisù swift; rapidly Full dictionary entry for 飞速 Example sentences using 飞速 2 sentences, showing page 1 of 1. 汽车飞速开过去了。 Qìchē fēisù kāi guòqù le. The car sped past. 这座城市飞速发展。 Zhè zuò chéngshì fēisù fāzhǎn. This city is developing rapidly.