a)EXPLAINto explain something clearly and in detail 清楚地说明;详细地解释
spell out how/what etc
The report spelled out in detail what the implications were for teacher training.
这份报告详细说明了教师培训的作用。
b)SAY/STATEto show how a word is spelled by writing or saying the letters separately in order 〔用字母〕拼出〔某个单词〕
‘W-E-I-R, ’ she said, spelling it out.
“W-E-I-R, ” 她一个字母一个字母地把它拼了出来。
c)WRITEto write a word in its complete form instead of using an abbreviation 全部拼出,全部写出〔某个单词,而不用缩写〕
Examples from the Corpus
spell out• If at all unsure, ask caller to spell it out. 3.• The Minister has a responsibility to spell that out.• Worse still, he/she perhaps never articulates them at all unless he/she expects to have to spell them out.• I spelled them out for you, and you agreed.• We needn't spell the five out here, or even understand them.• He knew he had to spell their future out to her - it was only fair.• Should she spell it out to him, or would that fatally overplay her hand?• With people we know, rather than spell everything out, we rely on sharedunderstandings to facilitate the problem of communicating.