善于 (shàn yú): to be good at

Xiao Li is very good at communicating with people, so the company put him in charge of receiving clients.

She is good at learning from failure, so she makes progress quickly.

This painter is good at using simple lines to express complex emotions.

He is good at managing his time, so he can both finish his work and keep exercising.

Teacher Wang is good at explaining grammar with stories, so the students all feel that Chinese is not difficult anymore.