Too heavy burden made the level of life low and had bad effect upon the farmers' ability the production and reproduction.

农民负担过重，不但影响了农民生活水平的提高，而且影响他们生产和再生产的能力。

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For another example, some parents and teachers, in order to improve children's academic performance in a short time, tend to put too heavy burden on children.

另一个例子，一些家长和老师，为了提高孩子们的学习成绩在短时间内，往往会给孩子太沉重的负担。

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At that time I said to you, "you are too heavy a burden for me to carry alone."

那时，我对你们说，管理你们的重任，我独自担当不起。

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Bogota and Lima are eager to ratify the FTA's with the US since the ATPDEA, although a step forward, still forces exporters to cover the full costs of the tariffs which, in many cases, is a much too heavy burden for some businesses.

CENTERFORSECURITYPOLICY: The Importance of Ratifying Free Trade Agreements

Aretino declared that the fame of his father had proved too heavy a burden for the eldest son.

ECONOMIST: The greatest painter of the Venetian Renaissance

But choice is a burden too heavy for some.

FORBES: Dvorak is wrong