形容词为：“helpful“。

译为：给予帮助的，乐于帮助的。[ 派生词 ]：helpfully adverb, helpfulness noun. 造句：people are friendly and helpful.译：人们友好，乐于助人。help简单译释： （动词）帮助，援助，资助，救助；给（人）拿（食物或饮料）；无法避免，忍不住。（名词）帮助。（用于紧急求救）救命。造句：（1）they helped her with domestic chores.译：他们帮她做家庭杂务。（2）I asked for help from my neighbours.译：我请求邻居帮助。（3）she was always ready to lend a helping hand. 她总是乐于伸出援助之手。