There is one chance in a thousand that he will fulfil the plan. 他實(shí)現自己計劃的機會(huì )只有千分之一。
The researchers say the number of new infections could drop below one in one thousand people in the unvaccinated population. 研究人員稱(chēng)新傳染的數量在沒(méi)有接種疫苗的人群中能夠降低千分之一。