详细解释:a. 恰好的, 时机适宜的, 适当的
词型变化：
名词:opportuneness副词:opportunely英语解释：
形容词 opportune:
suitable or at a time that is suitable or advantageous especially for a particular purpose例句：
Occurring at a suitable or opportune time; well-timed.及时的在一个适当或适宜的时间发生的; 适时的