1.seem to 似乎，好象

Some people seem to be always lucky.
有些人似乎从来都是幸运的。

I seem to see someone going into my house.
我好像看见有人走进了我的家。

2.safety risk 安全风险

After he had taken that seat, Mr. Smithwas told he was deemed a safety risk.
他换成那张单座的机票后，被告知他存在安全隐患。

Why are the United States of America and other industrialized countries avoiding use of thiomersal in vaccines if there is no proven safety risk ?
如果没有证据表明存在安全风险，为什么美国和其他工业化国家仍避免在疫苗中使用硫柳汞？

3.break up 打碎，破碎

The meeting didn't break up until noon.
集会到中午才结束。

How do you break up?
你如何提出分手？

4.suppose to 认为是

It is suppose to be working now but it remains like a log.
它应该可以打印的，但是现在它像木头一样一动不动。

I suppose to a lesser literacy skill of being a good listener or viewer and have information push condensed.
假设一名优秀的聆听者,或观众需要较少的文化素养,我会将信息压缩。