[经] immediate participation guarantee contract

zhí jiē cān yù bǎo zhèng hé tóng ㄓˊ ㄐㄧㄝ ㄘㄢ ㄩˋ ㄅㄠˇ ㄓㄥˋ ㄏㄜˊ ㄊㄨㄥˊ