abacus [ˈæbəkəs]以下由轻松背单词网站提供
单词级别第8级基本释义n.算盘英英释义a square or rectangular frame holding an arrangement of small balls on metal rods or wires , which is used for counting , adding , and subtracting参考例句They also learned to use the abacus. 他们还学习珠算。The abacus is the ancestor of the modern computer. 算盘是现代电脑的原型。 推荐阅读 |