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。

The exhibition is timely, since 'self-taught' art is catching on in a big way.

展会召开得非常及时，因为“自修”艺术正在广泛流行。