Hi @YuQinCai, @Constance_Fang @Fiona and the ChinesePod team, my question is this:
中文怎麼說：“to have something on someone”? 比方說如果你可以透露一個人的老底, you have something on him.
I think the word you’re looking for is 抓(住)把柄。This is covered in the lesson, 《小太监进宫五》。Here’s one of the example sentences:
被她抓住把柄，你就别想有好日子过了。
Once she’s got something on you, the good times are over for you.
Thank you for your response. This expression is pretty much in the news these days.
“to have something on someone” means 握着某人的把柄