He invented an ingenious excuse for his absence.

他为缺席编造了一个巧妙的借口。

Try to think of unusual and ingenious solutions.

尽量想想不同寻常的、巧妙的解决方法。

An ingenious idea suddenly came upon him when he was taking a walk with his wife.

他和他夫人散步时突然想到了一个绝妙的主意。

She is an ingenious girl.

她是位很巧的姑娘。