favourable、fortunate、happy与lucky这些形容词都可表示“有利的、好运的、顺利的”之意。
favourable : 普通用词，指预示从良好的结果中能得到明显好处，有利于达到目的。
- It's believed the conditions in which the elections are being held are too favourable to the government.
人们认为举行选举的条件对政府过于有利。
fortunate : 指目前已存在的成功或有利情况，或指因好运或机会带来的成功和喜悦。
- You're very fortunate to have found such a nice house.
你能找到这么一栋漂亮的房子真是非常幸运。 - He was fortunate in his choice of assistant.
他很幸运，选择了一位好助手。 - It was fortunate that they had set out early because the traffic was terrible.
幸运的是他们出发得很早，因为交通状况实在太糟了。
happy : 侧重指不是通过某种机会，而是凭借鉴另和选择手段而得到利益与好处。有时也指偶然得到的好处，但强调的是有利的结果。
- We hadn't planned to be in France at the same time as Ann and Charles - it was just a happy coincidence.
我们从未打算与安和查尔斯同时到法国——那只是一个幸运的巧合。
lucky : 多指偶然机遇中的有利或幸运情况。
- "I'm going to Japan." "Lucky you!"
“我要去日本了。”“你运气真好！” - The lucky winner will be able to choose from three different holidays.
幸运的获胜者可以从3种不同的假日方案中选择一种。 - They're lucky to have such a nice office to work in.
他们能在这么好的办公室里工作真走运。 - He's lucky that he wasn't fired.
他很幸运，没有被解雇。 - It sounds as if you had a lucky escape (= by good chance you were able to avoid something dangerous or unpleasant).
听起来好像你是侥幸逃脱啊。 - We'll be lucky if we get there by midnight at this rate (= we might get there by midnight or it might be later).
按照这样的速度，我们能在午夜前到达就算幸运了。
