Abacus
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定义
an abacus: 算盘
示例
- "It's a book on miniature steam engines and... an antique abacus!"
练习 1
What present(s) did Icarus receive from the staff?
There may be more than one correct answer!
There may be more than one correct answer!
What present(s) did Icarus receive from the staff?
There may be more than one correct answer!
There may be more than one correct answer!
This is correct. The staff's first gift to Icarus is a book on 'miniature steam engines'.
Icarus guesses that his present is a tie, however Horatio emphatically denies that this is the case. A 'tie' is an article of clothing worn around the neck (also called a 'neck tie').
Icarus guesses that his present is a hat, however Jean quietly denies that this is the case. A 'hat' is an accessory worn on the head.
Icarus hopefully guesses that his present is a calculator, however Bruno casually dismisses this notion. A 'calculator' is a small, battery-operated (sometimes solar powered) device used for performing calculations.
This is correct. The staff's second gift to Icarus is a device for making arithmetic calculations, called an abacus. The abacus originated in Babylon or China, experts debate the topic. The device is a frame (usually made of wood) with rods on which balls or beads are moved. The abacus is still used by merchants to perform mathematical equations in some countries.
进一步了解…
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