幽香雨草
名词是abacus打算盘常用说法是operate/use/work an abacus~~ 一般没啥人用counting frame的~就如同咱们叫它算盘，不会叫它计算用的木板和珠子~
全全英英
abacus /'æbəkəs/, e.g. Abacus is an ancient Chinese calculator which can help people count numbers and record account.
薇枫1988
The abacus was inviented in the six century by the Chinese(这是书上原句 算盘）The umberealla was inviented in 1000 by the Chinese(伞）The binoculars was inviented in 1608 by the Italy（双筒望远镜）The camera was inviented in 1839 by the France（照相机）The bicycle was inviented in 1971 by the Britain（自行车）今天老师也叫了我们回家查！~初三党~~
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