unable to establish

基本解釋

Unable to establish database connection with database.
無(wú)法建立該數(shù)據(jù)庫(kù)的數(shù)據(jù)庫(kù)連接。
But until now researchers have been unable to establish whether it had happened and, if so, how.
但是直到今天，研究人員還不能確定是否發(fā)生了這樣的事，也不知道果真如此的話，它是如何傳遞的。
Blaise Lempen says the international community has been unable to establish "effective mechanisms" for bringing the responsible parties to trial.
他說(shuō)，國(guó)際社會(huì)無(wú)法建立有傚的機(jī)制把殺害記者的罪魁禍?zhǔn)桌K之以法。

"We are unable to establish any basis whatsoever for the 16.5% figure, " an outside performance review concluded.
FORBES: Financial Watchdog