1
[number] watt(s)
表示功率数值时，数字后直接跟单位，大于1时用复数形式watts。
The light bulb uses 60 watts.
这个灯泡使用60瓦。
瓦特（功率单位）
先理解核心含义，再看它在真实句子里的用法。
瓦特（功率单位）
a unit of power equal to 1 joule per second
The light bulb uses 60 watts.
这个灯泡使用60瓦。
国际单位制中功率的导出单位；每秒钟转移一焦耳能量的系统功率。
In the International System of Units, the derived unit of power; the power of a system in which one joule of energy is transferred per second.
This light bulb consumes 60 watts of electricity.
这个灯泡消耗60瓦的电力。
A typical microwave oven uses around 1000 watts.
一台典型的微波炉大约使用1000瓦。
The amplifier can deliver 200 watts per channel.
这个放大器每个声道能输出200瓦。
表示功率数值时，数字后直接跟单位，大于1时用复数形式watts。
The light bulb uses 60 watts.
这个灯泡使用60瓦。
用作形容词修饰设备，数字与单位之间加连字符。
She bought a 100-watt amplifier.
她买了一个100瓦的放大器。
表示单位面积上的功率密度，per后接面积单位。
The sunlight intensity is 1000 watts per square meter.
阳光强度是每平方米1000瓦。
Not this
How many what does this bulb use?
Use this
How many watts does this bulb use?
学生因发音相似将‘watt’误拼为疑问词‘what’，应改为正确的功率单位‘watt’的复数形式‘watts’。
Not this
This device consumes 500 watt.
Use this
This device consumes 500 watts.
‘watt’为可数名词，数量大于1时需使用复数形式‘watts’。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
60瓦灯泡
I replaced the old bulb with a 60-watt one.
我把旧灯泡换成了60瓦的。
100瓦灯
The room requires a 100-watt light for sufficient brightness.
这个房间需要100瓦的灯才能足够亮。
低功率电器
Low-watt appliances help reduce electricity bills.
低功率电器有助于减少电费。
功率输出
The speaker's watt output is 200 watts per channel.
该音箱每声道功率输出为200瓦。
功耗
This device has a watt consumption of 500 watts.
该设备功耗为500瓦。
1.21吉瓦！
In Back to the Future, the DeLorean needs 1.21 gigawatts of power to time travel.
在《回到未来》中，德罗宁需要1.21吉瓦的电力才能进行时间旅行。
Use watt naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想灯泡上的“60W”标记，W就是瓦特（watt），功率越大灯光越亮。
语域：neutral 常见场景：physics、electricity、engineering 瓦特是功率单位，通常用于科技、工程和日常电器参数说明中。
All six words are genuine rhymes with 'watt' (IPA /wɒt/). Many common words like 'that', 'cat', 'hat' have the spelling pattern '-at' but are pronounced with /æt/, not /ɒt/, so they are not rhymes. Be careful not to confuse the spelling.
Dictionary facts from ECDICT, WIKTIONARY.