phrasal verbphr v informalTELL A SECRETto not tell someone about something important 隐瞒〔重要事情〕
She must have been holding out on him all these years.
这些年来她肯定一直瞒着他。
Examples from the Corpus
hold out on • Harry would know that his brother was holding out on him, as he always did.• Now, I suppose I regretholding out on him.• They are holding out on me.• Mrs Sweet was holding out on the police.• They must think we're holding out on them.