Meaning of fā chū:
fā chū
发出
Verb
to issue (an order, decree etc); to send out; to dispatch; to produce (a sound); to let out (a laugh)
Tā zhōngyú xiàng gōngsī fāchū le cízhí xìn.
他终于向公司发出了辞职信。
He finally sent out his resignation letter to the company.
Tā fāchū le kuàilè de xiàoshēng.
他发出了快乐的笑声。
He let out a joyful laugh.