watt
IPA/wɒt/
KK[wˈɑt]IPA/wɑːt/
watt — noun
- wattsingular
- wattsplural
1. the standard unit used to measure how much electrical power a device uses or pro
1.名詞B1
釋義
the standard unit used to measure how much electrical power a device uses or produces
例句
The old 60-watt bulb used more power than the new 10-watt LED one.
modifier form: 60-watt / 10-watt
David checked the watt rating on the microwave before plugging it in.
collocation: watt rating
A typical hair dryer uses around 1,500 watts of electricity.
Wren swapped the 40-watt bulbs for 8-watt LEDs to save energy.
This solar panel can produce up to 300 watts in full sunlight.
文法句型
number + watt + noun
number + watts
用法筆記
After a number, use the singular with 1 and the plural with larger numbers (1 watt, 60 watts). Before a noun, the unit usually stays singular and takes a hyphen, as in a 60-watt bulb.
常見錯誤
❌I need a 60-watts light bulb.
✅I need a 60-watt light bulb.
💡Before a noun, the unit stays singular in the compound form.