The speedometer is the round dial (or, in newer cars, the screen) in front of the driver that shows how fast the vehicle is moving right now. Every car, bus, truck and motorcycle has one, and it is the instrument the driver glances at most often, because it is the one that tells you whether you are within the speed limit.

The speedometer is the round dialspeedometer（速度表）就是那個圓形錶 (or, in newer cars, the screen)（新一點的車子則是螢幕） in front of the driver在駕駛前方 that shows how fast the vehicle is moving right now顯示車子現在跑多快 Every car, bus, truck and motorcycle has one每輛車、公車、卡車、摩托車都有一個 and it is the instrument the driver glances at most often而且是駕駛人最常瞄的儀表 because it is the one that tells you whether you are within the speed limit因為它會告訴你有沒有超速

It shows speed only — how fast. It does not show how far you have travelled; that is the odometer, a different dial, usually sitting right next to it, and the two words are so close that even native speakers mix them up.

It shows speed only它只顯示速度 how fast就是跑多快 It does not show how far you have travelled它不會顯示你跑了多遠 that is the odometer那是里程表 a different dial另一個錶 usually sitting right next to it通常就在旁邊 and the two words are so close而且這兩個字長得很像 that even native speakers mix them up連母語人士都會搞混

Speedometer, speed. Odometer, distance.

Speedometer, speedspeedometer，速度 Odometer, distanceodometer，距離

In Taiwan the dial normally reads in kilometres per hour; in the US and Britain you will see miles per hour, sometimes both rings on the same dial, which is why a car imported from America can look confusing here.

In Taiwan在台灣 the dial normally reads in kilometres per hour錶通常顯示每小時幾公里 in the US and Britain在美國和英國 you will see miles per hour你看到的會是每小時幾英里 sometimes both rings on the same dial有時候同一個錶上會有兩圈刻度 which is why a car imported from America can look confusing here這就是為什麼從美國進口的車在這裡看起來會讓人搞不清楚

One honest detail your driving instructor may not mention: car speedometers are deliberately slightly optimistic. By regulation in most countries they are allowed to read a little high but never low, so the needle saying 100 often means you are truly doing about 95. That is a safety margin, not a fault.

One honest detail有個老實說的細節 your driving instructor may not mention你的駕訓班教練可能不會提 car speedometers are deliberately slightly optimistic車子的speedometer其實故意設定得稍微樂觀一點 By regulation in most countries在大多數國家的法規下 they are allowed to read a little high but never low它們可以顯示得稍微偏高、但絕不能偏低 so the needle saying 100所以指針顯示100時 often means you are truly doing about 95常常代表你實際上大概只跑95 That is a safety margin這是一種安全緩衝 not a fault不是故障

The word is a normal everyday noun — nothing formal about it — though in casual speech people often just say "the speedo" in Britain and Australia, and Americans might say "the speed" as in "what does the speed say?"

The word is a normal everyday noun這個字是個普通的日常名詞 nothing formal about it沒什麼正式的地方 though in casual speech不過口語裡 people often just say "the speedo" in Britain and Australia英國和澳洲的人常常直接說「the speedo」 and Americans might say "the speed"美國人可能會說「the speed」 as in "what does the speed say?"就像「what does the speed say?」