来自portent,恶兆，凶兆，-ous,形容词后缀。

1. Portentous choices were forced on him by the dozen.

众多事关重大的抉择强加在了他身上。

2. The present aspect of society is portentous of great change.

现在的社会预示着重大变革的发生.

3. In social politics, too, the city's contribution to 20th century thought and culture was no less portentous.

同样从社会政治学上看，城市对20世纪思想、文化的贡献也意义重大。

4. Before me stretched the portentous, menacing road of a new decade.

在我面前展现出一条新的十年的凶多吉少 、 咄咄逼人的道路.

5. There was nothing portentous or solemn about him. He was bubbling with humour.

他一点也不装腔作势或故作严肃，浑身散发着幽默。