向 + Person + 请教 + Topic
请教 (qǐngjiào) means "to consult" or "to ask for advice," and implies a respectful tone toward the person being consulted. It is often used with 向 to indicate whom you are asking, followed by the topic of the consultation.
我想向老师请教一个问题。
Wǒ xiǎng xiàng lǎoshī qǐngjiào yí gè wèntí.
I'd like to ask the teacher for advice on a question.
有不懂的地方可以随时来请教我。
Yǒu bù dǒng de dìfang kěyǐ suíshí lái qǐngjiào wǒ.
If there's anything you don't understand, feel free to come ask me anytime.
他很谦虚,经常向同事请教经验。
Tā hěn qiānxū, jīngcháng xiàng tóngshì qǐngjiào jīngyàn.
He is very modest and often seeks advice from his colleagues.