1、两次的英文:twice。
2、例句:Twice weekly I go swimming。每星期我去游泳两次。
At match point, she served a double fault.她在决胜点两次发球失误。
The time at which the two reductive divisions occur is not necessarilycoincident to the time of ovulation.两次减数分裂的时间不一定与排卵时间相一致。