1
number + tonnes of + noun
The factory produces 500 tonnes of steel per day.
这家工厂每天生产500吨钢材。
吨；公吨
先理解核心含义，再看它在真实句子里的用法。
吨；公吨
a unit of mass equal to 1000 kilograms
The factory produces 500 tonnes of steel per day.
这家工厂每天生产500吨钢材。
质量单位,等于1000公斤。
A unit of mass equal to 1000 kilograms.
重量单位,相当于1000千克
a unit of weight equivalent to 1000 kilograms
The truck can carry up to ten tonnes of sand.
这辆卡车最多能运载十吨沙子。
Each bag weighs one tonne, so use a crane.
每个袋子重一吨，所以请使用起重机。
The factory produces about 500 tonnes of steel every month.
这家工厂每月生产大约500吨钢材。
The factory produces 500 tonnes of steel per day.
这家工厂每天生产500吨钢材。
Tonnes of waste are dumped into the ocean each year.
每年有大量的垃圾被倾倒入海洋。
注意区分tonne（公吨，1000千克）和ton（英吨或美吨）。
Each container weighs about 2 tonnes.
每个集装箱重约2吨。
Not this
The truck can carry 5 tons.
Use this
The truck can carry 5 tonnes.
中文说“吨”通常指公吨，但英语中“ton”常指短吨（约907公斤）或长吨（约1016公斤），而“tonne”才是公吨（1000公斤）。学习者容易直译将“吨”误用为“ton”。
Not this
We need two tonne of sand.
Use this
We need two tonnes of sand.
“tonne”是可数名词，表示多个单位时需加复数词尾“-s”，不可省略。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
百万吨
The mine produced 5 million tonnes of iron ore last year.
该矿去年生产了500万吨铁矿石。
每吨
The price of steel is around $600 per tonne.
钢材价格约为每吨600美元。
一吨碳
The company plans to reduce its emissions by 10,000 tonnes of carbon annually.
该公司计划每年减少1万吨碳排放。
一吨货物
Each container can hold up to 20 tonnes of cargo.
每个集装箱最多可装载20吨货物。
一吨煤
The power station consumes 3 million tonnes of coal per year.
该发电站每年消耗300万吨煤。
一吨垃圾
The recycling plant processes 500 tonnes of waste daily.
回收厂每天处理500吨垃圾。
沉重地, 突然地
The news hit him like a tonne of bricks.
那消息像一吨砖头一样沉重地打击了他。
Use tonne naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
tonne发音与ton相同，但多一个n代表metric（公制），即公吨（1000公斤）。
[object Object]
Words like 'run', 'sun', 'fun' rhyme with /tʌn/. Be careful of 'tone' (/toʊn/) which looks similar but sounds different. 'Ton' is a homophone but spelled differently.
Dictionary facts from ECDICT, WIKTIONARY.