warn against告诫, 当心, 提防
例句：The doctor warned the patient against smoking.
医生告诫病人不要吸烟。
2. Of particular concern: Iran’s quest for raw nuclear materials and what U.S. National Intelligence Director James Clapper recently described as Iran’s increasing willingness to mount attacks on U.S. soil.
describe as描述为
例句：I should describe the attempt as a failure.
我认为这次尝试失败了。
3. Let us remember that it was senior Iranian officials that were linked to the 1992 bombing of the Israeli embassy in Buenos Aires that killed 30 people, a 1994 bombing at the Argentine-Israeli Mutual Association that killed 85 people.
link to与…连接; 联系
例句：Fingerprints linked the suspect to the crime.
指纹使嫌疑犯与犯罪联系起来。
4. During a visit to Caracas last month, President Ahmadinejad described U.S. concern about Iran’s engagement with Latin America as "laughable."
concern about使(自己)关心…
例句：There is no need for you to concern yourself about where I was last night.
你没必要关心我昨晚在哪儿。
