beneficial friend good friend (companion)
She is really excellent company , and talking to her improves my mind.
她的确是非常理想的良友, 跟她谈话使我得益不少。
—— 辞典例句Good company and good discourse are the very sinews of virtue ( Izaak Walton )
良友和益言是美德的源泉 ( 艾萨克沃尔顿 )
—— 给力词典精选The teacher advised his pupils to keep good company.
那位老师建议学生结交良友。
—— 给力词典精选He who has a good friend needs no mirror.
有良友者毋须镜。
—— 给力词典精选Conscience warns us as a friend before it punishes as a judge.
良心如同法曹施行惩罚之前,已如良友一般先行提醒。
—— 给力词典精选