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　　3．Australia is nearly as larger as the United States，but most of it is too dry for people to live in.

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　　4．The dictionary is out of the date：Many words have been added to the language since it was published.

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　　5．First Yuan Longping experimented of different types of rice.

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　　6．The letter adds，"When dangerous and divisive(导致分裂的)leaders have come to the power in the past，it has been in part because those of goodwill failed to speak out for themselves or their fellow citizens."

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　　7．Whatever difficult the work may be，we must go all out to finish it ahead of time.

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