achievement可数吗?

问题描述:

achievement可数吗?

可数有些句子前面可以加a的..achievementKK: []DJ: []n.1. 达成;完成[U]achievement of an ambition抱负的实现2. 成就,成绩[C]The invention of the computer is a great achievement.发明电脑是一大成就.例句与用法...