Condition Has Been Improved 情况已经改善
System has been improved 系统进行了改进
Production Has Been Improved 产量上得到提高
efficiency has been improved 效率可提高
has been improved continuously so 不断得到改进
Has been greatly improved 得到了很大的提高
has not been improved 还未得到改善
Environment has been greatly improved 环境有了很大的改善
Has Been Further Improved 得到进一步提高
Arrange support has been improved.
分配支持已经被改进。
Performance has been improved.
性能已得到改进。
His English has been improved greatly.
他英语进步很快。
Thailand's royal palace has been issuing daily updates on the king's health that say it has gradually improved.
VOA: standard.2009.10.15
They had been harassed,she says, by Muslim youths, but since a volunteer group was formed, security has improved.
VOA: standard.2009.08.31
"It seems to me that we should be able to take what has been a tragedy and turn it into an opportunity to create a situation where lives in Gaza are actually directly improved."
VOA: standard.2010.06.10
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