yì yòng quǎn / jīng guò / xùn liàn / hòu / néng gòu / bāng zhù / rén men / wán chéng / gè zhǒng / rèn wù

役用犬经过训练后，能够帮助人们完成各种任务。

Working dogs, after training, can help people accomplish various tasks.