HSK 5 · adjective
专心
attentive; concentrated; to focus on
上课要专心，别说话。
Shàngkè yào zhuānxīn， bié shuōhuà。
Be attentive in class and don't talk.
他专心看书，不理会旁边的声音。
Tā zhuānxīn kàn shū， bù lǐhuì pángbiān de shēngyīn。
He focused on his book and paid no attention to the sounds nearby.