spell something out

Từ điển Oxford Advanced Learner 8th

ˌspell sthˈout derived
1. to explain sth in a simple, clear way
•You know what I mean— I'm sure I don't need to spell it out.
•~ why, what, etc… Let me spell out why we need more money.
2. to say or write the letters of a word in the right order
•Could you spell that name out again?
Main entry: ↑spell_derived