英語abacus怎麼讀

1、abacus英[??b?k?s]美[??b?k?s]，n.算盤。

2、[例句]The simplest example of this type is the abacus, which has been used in many parts of the world since ancient times.這一類型中最簡單的實例就是世界各地自古以來使用算盤。