[经] real interest actually paid

shí jì zhī fù de zhēn shí lì xī ㄕˊ ㄐㄧˋ ㄓ ㄈㄨˋ ㄉㄜ˙ ㄓㄣ ㄕˊ ㄌㄧˋ ㄒㄧ