Triggering a tiny earthquake is easy (see above about oil production), but triggering an earthquake big enough to matter would be extremely difficult.
引发小地震是很容易的(参见上述有关石油开采的内容)，但是引发大地震是极其困难的。
But carrying out plans for an easy ascension may be more difficult than expected, some are quoted as saying.
不过，一些人认为，实施晋升计划要比预计困难得多。
Retired Israeli General Shlomo Gazit of Tel Aviv University says getting an agreement with the Syrians might not be that difficult, but getting the Israeli public to accept it will not be easy.
特拉维夫大学的以色列退役将军加齐特说，以色列和叙利亚达成协议也许并不难，但是要让以色列公众接受这项协议就不那么简单了。
Such an ESB-oriented architecture is easy to envision, but its success is difficult to measure.
此类面向ESB的体系结构并不困难，但是其成功与否却难下定论。
People think that maybe it is an easy game against Reading. We need to be careful because it can be a difficult game, but we have confidence.
人们认为对雷丁的比赛可能会很容易。我们需要小心应付，因为这有可能会是一场艰难的比赛，尽管如此我们对比赛还是有信心的。
It may not be the most difficult year of Chinese economy, neither the most complex year, but it is not an easy year.
今年中国经济可能不是最困难的一年，可能也不是最复杂的一年，但也是不轻松的一年。
On the surface, this seems like a difficult problem, but in fact there's an easy solution to it.
表面看来，这问题似乎很难，但实际上答案很简单。
Sometimes it's easy to understand how an evolutionary change took place, but it's more difficult to understand why.
有时候理解进化怎么产生很容易，但是要知道为什么就很难了。
It is an easy path to start down but difficult to quit.
饮食失调是使人消沉很容易达到的一条途径，然而要想戒掉它就很难。
On the surface, this seems like a difficult problem, but in fact there's an easy solution to it.
表面上看这个问题似乎很难，但实际上答案很简单。
This is an easy question for a Chinese to ask, but a Westerner might find it difficult to answer.
这是一个中国人常问的问题，而西方人却很难作答。
Studying a language is not an easy thing to do but it is not so difficult either.
学习一种语言不是一件简单的事，但是也不是困难到哪儿的事。
Though we wanted to have an easy life, but we must to live joyfully in this difficult lifetime.
虽然说最幸福的是平淡的度过无故事的一生，但是还得要快乐的度过充满困难的一生。
There seems to be an easy answer, but as in all these plays, things are more difficult, and much funnier, than that.
事情似乎很容易解决，不过就像书中其他短剧一样，问题可要复杂得多，也有趣得多。
However, chimpanzees are highly endangered species, but also a great size, easy breeding and rearing, the cost of expensive, difficult to study as an animal model of AIDS.
然而，黑猩猩是高度濒危物种，而且体型巨大，不易繁殖和养育，费用昂贵，难以作为艾滋病研究动物模型。
However, chimpanzees are highly endangered species, but also a great size, easy breeding and rearing, the cost of expensive, difficult to study as an animal model of AIDS.
然而，黑猩猩是高度濒危物种，而且体型巨大，不易繁殖和养育，费用昂贵，难以作为艾滋病研究动物模型。
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