timely

1. ADJ If you describe an event as timely, it happens exactly at the moment when it is most useful, effective, or relevant. 適時的[表贊許]

The recent outbreaks of cholera are a timely reminder that this disease is still a serious health hazard. 最近幾次爆發的霍亂是一個適時的提醒，該疾病依然是個嚴重的健康危害。