The difficulty with most grown-up people is that they have not solved the problem of their own living, and yet they say to you, "I will tell you what is practical and what is not".

多数成年人的一大困难在于他们自己尚未解决生活中的问题，却对你评头论足，“我来告诉你什么实用什么不使用”。

youdao

Yet so far, scientists haven't proved it is true and some say they are just bears.

但到目前为止，科学家们还没有证明这是真的，一些人说它们只是熊。

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They say that they are drawn to the prospect of learning applications outside the classroom, though such lesson plans have yet to surface.

他们表示，尽管此类课程计划尚未浮出水面，但他们对课堂以外的学习应用前景很感兴趣。

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They developed new methods to get what they say are the best estimates yet for almost every country.

VOA: special.2010.04.14

They say there are many other parts of the cave they have yet to explore.

VOA: special.2010.08.03

South Korean officials have demanded a formal apology from the North and say they have not yet decided whether and how to pursue the matter further.

VOA: standard.2009.09.11

Yet they say the world does not always embrace them.

NPR: A Close Bond Sheds Light on Race Relations

Two major and very different activist events have just ended CPAC, for conservative politicians and voters, and SXSW, which attracts artists and technologists yet they say very similar things about the dangers of preaching to the faithful.

FORBES: CPAC, SXSW, and the Dangers of Preaching to the Faithful

Yet they still say officially they have no concrete proof of a weapons programme.

ECONOMIST: Diplomacy and Iran