| 例句 |
The abacus was the precursor of the modern electronic calculator.算盘是现代电子计算器的前身。Do you know how to work an abacus?你会打算盘吗？ The abacus is the ancestor of the modern computer.算盘是现代电脑的原型。The most commonly cited example of a primitive device is the abacus.说到早期的用具，最常举的例子是算盘。The calculator is rapidly replacing the abacus.计算器正在迅速取算盘而代之。 |