谁能赢这场比赛还说不定。
誰能贏這場比賽還說不定。
It's still not certain who's going to win this match.
說不定
Meaning
can't say for sure
maybe
Examples
谁能赢这场比赛还说不定。
誰能贏這場比賽還說不定。
It's still not certain who's going to win this match.
我一个月没见到小王了,他说不定已经回国了。
我一個月沒見到小王了,他說不定已經回國了。
I haven't seen Xiaowang for a month now; perhaps he's already gone back to his own country.