intellectual
a.智力的,善于思维的 n.知识分子
a job that requires considerable intellectual effort
一份需要花大量心思的工作
intelligence
n.智力,智慧,理解力;情报,消息
To be good at the game you need a reasonable level of intelligence.
要想把这种游戏玩好,需要一定的智力水平。
intelligent
a.聪明的,有才智的
a group of highly intelligent (=very intelligent) students
一组聪明异常的学生
intelligible
a.可理解的,明白易懂的,清楚的
His reply was barely intelligible.
他的回复几乎让人听不懂。