tā / suī / rán / nián / jì / bù / dà / dàn / shì / zuò / shì / hěn / lǎo / chéng / dà / jiā / dōu / yuàn / yì / tīng / tā / de / yì / jiàn

他虽然年纪不大，但是做事很老成，大家都愿意听他的意见。

Although he is not very old, he is mature and experienced, so everyone is willing to listen to his opinion.