可能性很小用英语怎么说

可能性很小可以用英语表达为 "low probability" 或 "unlikely."
来源：这个短语是由 "low"（低）和 "probability"（概率）两个单词组合而成。
例句：
It's unlikely that it will rain tomorrow. (明天下雨的可能性很小。)
The probability of winning the lottery is low. (中奖的概率很低。)
There's a low chance of the project being completed on time. (项目能按时完成的可能性很小。)