advent n.出现，到来

Since the advent of atomic power, there have been great changes in industry.
自从原子能问世以来，工业领域起了很大变化。

adversity n.逆境，不幸

Their friendship was forged by sharing adversity.
他们的友谊是由于共患难而结成的。

affinity n. 喜爱

He has an affinity for fine food.
他喜爱精美的食品。

affluent adj.富裕的，富足的

He is an affluent man.
他是一个富有的人。

allude vi.提及，暗指

In your remarks you alluded to a certain sinister design.
在你的谈话中, 你提到了某个阴谋。

ambience n.环境，气氛

This restaurant has a pleasant ambience.
这家饭店的环境优雅宜人。