【简答题】b____ vt.be fairly sure that srh.is true,that sth.will happen,etc., although you can’tprove this 肯定 v.risk money on the result of a race, , competition or other future 下赌注;与 ... 打赌
【简答题】vt. be fairly sure that sth. is true, that sth. will happen, etc., although you can't prove this 肯定 v. risk money on the result of a race, , competition or other future 下赌注;与...打赌