EMISSIONS trading, says Ian Johnson of IDEAcarbon, a research firm, "is not an easy concept to understand".

IDEAcarbon(一个研究公司)的Ian Johnson说，排污权交易这个概念不容易理解。

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Johnson — a cum laude graduate of the Popovich academy — pushes the ball across half-court in search of easy baskets.

Johnson——Popovich学院的优等毕业生——把球推过半场寻找容易的投篮。

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However, breaking into the publishing business was not easy for Johnson.

可是对于约翰逊来说，进入出版业并非易事。

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Johnson,not Lincoln, would decide if reconstruction would be easy or hard.

VOA: special.2010.01.21

But,Johnson says, the physical work was the easy part.

VOA: standard.2009.11.25

"With Louis' form and experience, bringing him back in was an easy decision, " Johnson said.

BBC: Charlie Hodgson

Mr Johnson does not take this easy path.

ECONOMIST: Twirls and swirls from outer space

But snagging Johnson as her first client wasn't easy.

CNN: Should you launch your own consultant business?