大有裨益

bringing great benefits (idiom); very useful / of great service / to help greatly / to serve one well

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

there is much / (literary) abundance

there is a great deal of ... (typically followed by a bisyllabic word, as in 大有希望[da4 you3 xi1 wang4]) / (literary) bumper harvest; abundance

to have; there is / (bound form) having; with; -ful; -ed; -al (as in 有意[you3 yi4] intentional)

surname Pi

to benefit / to aid / advantageous / profitable

subordinate / secondary / small

benefit / advantage / profit / to be a benefit to

surname Yi

benefit / profit / advantage / beneficial / to increase / to add / all the more