英语作文：Find out when these things wewe invented and then write

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英语作文：Find out when these things wewe invented and then write about whem
Find out when these things wewe invented and then write about them
The abacus was invented in the sixth century by the Chinese...续写

the abacus caught on in several Mediterranean civilizations.
The abacus is a mechanical aid used for counting; it is not a calculator in the sense we use the word today.The person operating the abacus performs calculations in their head and uses the abacus to keep track of the sums,the carries,etc.
Although the art of using an abacus (and it really is an art!) is slowly dying,it is still fascinating to watch someone truly skilled in flicking the little beads around the frame.

英语作文：Find out when these things wewe invented and then write Find out when these things were invented and then write abou Read and find out the different word and write it 改错please find out more information and write them down Find out your group mates' birthdays and write them 英语题（Find and write）六年级英语作文stick aphoto of yourself and then write a 求关于when was it invented的英语作文 Find out who has these things,people,animals or who does the find and write Find and write. 翻译:Phone and find out when the film starts.