⇒ 无论我怎么说,她就是不开窍。 (Wúlùn wǒ zěnme shuō, tā jiùshì bù kāiqiào.) No matter how often I explained, she couldn't get it straight.
(指儿童) grow up (pt grew) (pp grown)
⇒ 他还没有开窍,不知道生孩子是怎么一回事。 (Tā hái méiyǒu kāiqiào, bù zhīdào shēng háizi shì zěnme yī huí shì.) He's not yet grown-up enough to understand the facts of life.