1、occur

发生

If headaches only occur at night, lack of fresh air and oxygen is often the cause.

如果只是在晚上头疼，那常常是由于缺乏新鲜空气和氧气的缘故。

The crash occurred when the crew shut down the wrong engine.

机务人员关错了引擎，随即飞机坠毁。

存在；出现；有

The cattle disease occurs more or less anywhere in Africa where the fly occurs.

在非洲凡是有这种蝇虫的地方，几乎都会出现这一牛病。

These snails do not occur on low-lying coral islands or atolls.

在地势低平的珊瑚岛或环礁上没有这种螺。

（想法或主意）被想到，被想起，浮现于脑海中

It did not occur to me to check my insurance policy.

我没有想到要核实我的保险单条款。

It occurred to me that I could have the book sent to me.

我想到可以让人把书寄给我。

2、claim

声称;断言

He claimed that it was all a conspiracy against him.

他声称这一切都是一场针对他的阴谋。

A man claiming to be a journalist threatened to reveal details about her private life.

一个自称是记者的人威胁要公开有关她的私生活的细节。

取得，获得，赢得(纪录、冠军或奖励)

Zhuang claimed the record in 54.64 seconds.

庄创下了54.64秒的纪录。

Steffi Graf claimed a fourth Wimbledon title in 1992.

施特菲·格拉芙于1992年第4次赢得温布尔登桂冠。

索取，索要(有权拥有的东西)

Now they are returning to claim what was theirs.

如今他们回来索取本属于他们的东西。