[经] profit and loss on buying and selling stocks bonds
mǎi mài yǒu jià zhèng quàn sǔn yì ㄇㄞˇ ㄇㄞˋ ㄧㄡˇ ㄐㄧㄚˋ ㄓㄥˋ ㄑㄩㄢˋ ㄙㄨㄣˇ ㄧˋ
买卖有价证券损益