及时英语是timely。timely的例句：We must find a way to resolve these problems before it's too late（我们必须及时找到解决这些问题的方法）。

timely的例句：The recent outbreaks of cholera are a timely reminder that this disease is still a serious health hazard（最近霍乱的爆发及时提醒了人们该疾病仍然会严重危害健康）。