专心 zhuān xīn to focus one's attention; to concentrate on (doing sth) Example sentences 开车不专心会很危险。 kāichē bù zhuānxīn huì hěn wēixiǎn. It's very dangerous if you do not concentrate on driving 专心做事，不要一边上网，一边做事。 zhuānxīn zuòshì, bùyào yībiān shàngwǎng, yībiān zuòshì. Be concentrated; do not do things while being on the internet at the same time