1. The president will announce a momentous decision.
    主席将宣布重要决定。

2. Dr. Robert Plomin of Penn State University(宾夕法尼亚州立大学), hopes to announce within the next few months that he has tracked down one of the genes that plays a part in determining intelligence.
    宾夕法尼亚州立大学的罗伯特·普罗明博士已经找到了影响智力的一种基因的踪迹，他希望能在几个月内公布结果。

3. Arriving from work, he might announce, "Wife, I am home!" And she, restraining the desire to complain about housework, would respond, "Husband, I am glad!"
    丈夫下班回家会说，“老婆，我回来了。”而妻子呢，也会克制自己，从不因家务辛苦而向丈夫发牢骚，只说“我真高兴，老公！”

4. Suppose you're at a party, someone asks what you do, and you announce 'nomad'. Immediately you're talking about camels (骆驼). And you can leave anytime.
    假如你正出席一个宴会，有人问你是干哪一行的，你说是个"游牧者"，马上你就会提到骆驼，而且你还可以随时离席。