評論
打印
Equal Sign
等號
Do you like math?
你喜歡數學嗎？
You probably saw an equal sign in math.
你或許在數學中看到過等號。
The equal sign is a symbol in math.
等號是數學中的符號。
It is used to show that things are the same.
它用來表示事物是相同的。
When was the equal sign made? Who made it?
什么時候發明了等號？又是誰發明的？
It was invented by Robert Recorde in 1557.
1557年，羅伯特·雷科德發明了它。
How do you read "ten plus ten equals twenty"?
你怎么讀“ten plus ten equals twenty”？
It is read as ten plus ten is equal to twenty.
它讀作10加10等于20。
