opportune
英 ['ɒpətjuːn; ,ɒpə'tjuːn]
美[ˌɔpə'tun]
	    - adj. 适当的;恰好的;合时宜的
 
英英释意
- 1. suitable or at a time that is suitable or advantageous especially for a particular purpose;
 - "an opportune place to make camp"
 - "an opportune arrival"
 
- 2. at a convenient or suitable time;
 - "an opportune time to receive guests"