Word: 增速 (zēngsù) 增速 dictionary entry zēngsù to speed up; growth rate Full dictionary entry for 增速 Example sentences using 增速 2 sentences, showing page 1 of 1. 去年的增速是多少？ Qùnián de zēngsù shì duōshǎo? What was the growth rate last year? 火车出站后慢慢增速。 Huǒchē chū zhàn hòu mànmàn zēngsù. The train gradually speeds up after leaving the station.