1、discover

发现(以前不知道的事实)

She discovered that they'd escaped.

她发现他们已经逃跑了。

I discovered I was pregnant.

我发现自己怀孕了。

(第一个)发现

the first European to discover America.

第一个发现美洲大陆的欧洲人

In the 19th century, gold was discovered in California.

19 世纪时，在加利福尼亚发现了金子。

初次接触(某活动并乐在其中)

I wish I'd discovered photography when I was younger.

我要是早点接触到摄影技术就好了。

Discover the delights and luxury of a private yacht.

体验私人游艇的乐趣和奢华。

2、appear

好像;似乎;看来

There appears to be increasing support for the leadership to take a more aggressive stance.

好像有越来越多的人支持领导层采取更为强势的立场。

The aircraft appears to have crashed near Katmandu.

飞机似乎在加德满都附近坠毁了。

看起来；显得

She did her best to appear more self-assured than she felt.

她竭力让自己表现得比实际更自信。

He is anxious to appear a gentleman.

他急于想表现得像个绅士。

出现；显现

A woman appeared at the far end of the street.

一个女人远远出现在街的尽头。

Last night some of the prisoners appeared on the roof.

昨晚，其中几个犯人出现在房顶上。