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open up开放，打开
例句：If the agreement is to succeed, the EU must open up its markets.
如能达成协议，欧盟必须开放其市场。
I couldn't open up the document on the computer.
我打不开计算机上的这个文件。
2.Iran maintains that its nuclear program is only for energy purposes.
for purposes相当于 for the purpose of 出于……目的
例句：To punish for the purpose of improving or reforming.
责罚为提高或改革的目的而处罚。
You might want to use a data compression utility for the purpose of backup.
你可能想要使用一种数据压缩设施用于数据备份。
3.The International Security Assistance Force says there 3 of the service members were killed by a roadside bomb,one died of gunshot wounds.
die of死于…,因…而死
例句：Some of them died of thirst in the desert.
他们中有些人在沙漠中渴死了。