business angel
noun/ˈbɪznəs eɪndʒl/
/ˈbɪznəs eɪndʒl/
(also angel, angel investor)
- a person who supports a business by investing money in it, especially somebody who supports a new small business with their own money
商业天使：通过投资来支持企业的人，特别是那些用自己的钱来支持新的小型企业的人