speedometer
🇺🇸
/spiːˈdɑːmɪtər/
🇬🇧
/spiːˈdɒmɪtə(r)/
A device in a car that tells you how fast you are going.
I checked the speedometer to make sure I wasn't driving too fast.
我检查了速度计,以确保我开车的速度不会太快。