1.spy on 秘密监视
例句:I found someone had being spying on me.
我发现有人一直在暗中监视着我
。2.Berlin Wall 柏林墙
例句:Soros, who at one stage after the fall of the Berlin Wall was providing more assistance to Russia than the US government, believes in practising what he preaches.
索罗斯在柏林墙倒塌后一段时间内向俄罗斯提供的援助曾一度超过美国政府的援助
。 他坚定地实施自己宣扬的观点 。3.warn of 警告
例句:The government warned of the storm.
政府预告说有暴雨
。4.suspicious of 对…起疑
例句:Physicists, on the other hand, have learned to be suspicious of axioms.
与经济学家不同的是,物理学家习惯用怀疑的目光看待公理
。