Only five of the 30 children paired with the "unreliable" tester participated in a follow-up activity.

与“不可靠”测试员组对的30名孩子中，只有5名参与了后续活动。

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In a recent speech in Iowa, he dismissed wind power as an unreliable energy source.

最近在爱荷华州的一次演讲中，他将风力发电视为一种不可靠的能源。

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Brown himself has been a stern critic of taxing financial transactions, and he himself knows that this kind of idea is totally unreliable.

布朗曾严厉的抨击过金融税，而他本人也知道，这种点子是根本靠不住的。

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And what do we accomplish by replacing a potentially unreliable petroleum supplier like Venezuela with a potentially unreliable ethanol supplier next door?

FORBES: Field of Dreamers

And what does the U.S. accomplish by replacing a potentially unreliable petroleum supplier like Venezuela with a potentially unreliable ethanol supplier next door?

FORBES: Companies, People, Ideas

On taking office Mr Jonathan vowed to fix three of Nigeria's biggest problems: electoral fraud, a woefully unreliable electricity supply and a violent insurgency in the oil-rich southern Delta.

ECONOMIST: Nigeria's coming election