opportune

adj.

（时间）合适的；恰好的；及时的；适时的

adv.

恰好地，适时地；

n.

恰好，适时，及时；

opportune moment恰当时机

1. It's an opportune rain.
   这是一场及时雨。
2. We must seize this highly opportune moment for reform.
   我们要抓住时机，现在是改革的最好时机。
3. The opportune arrival of the bus cut short the boring conversation.
   公车的适时到来缩短了这场无聊的谈话。
4. He arrived at the most opportune moment.
   他在最适当的时候到达。
5. This is an opportune moment to remind him.
   这恰是提醒他的时候。
6. An opportune word is like golden apples encased in silver.
   一句简单话，若说得适当，有如银盘中，放上金苹果。

Investigating the effectiveness of mental workload as a predictor of opportune moments for interruption
The prepubertal years: a uniquely opportune stage of growth when the skeleton is most responsive to exercise?
Desmoid tumor: a disease opportune for molecular insights.
énième (mais opportune ?) condamnation d'une répudiation marocaine
Epidemiology of iron deficiency anemia in Zanzibari schoolchildren: the importance of hookworms.
PEPTIDIC AND NON PEPTIDIC LIGANDS FOR IMMUNODETECTION OF THE RECEPTOR FOR UROTENSIN
Planning for robust reserve networks using uncertainty analysis
Towards a behavioral ecology of ecological landscapes.
Descending control of pain
Quantitative real-time RT-PCR--a perspective.