fù jià shǐ
copilot (abbr. for 副駕駛員|副驾驶员[fu4 jia4 shi3 yuan2])
front passenger seat (abbr. for 副駕駛座|副驾驶座[fu4 jia4 shi3 zuo4])
副
fù
secondary
驾
jià
to harness
驶
shǐ
(of a vehicle, horse etc) to go fast; to speed