This article introduces the correct way f drawing the line and states its theoretical basis.

本文介绍了它的正确画法，并指出其理论根据。

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I have here our price sheet on a F. O. B. basis. The prices are given without engagement.

这是我们船上交货价的价目单。所报价格没有约束力。

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I have here our price sheet on a F. O. B. basis. The prices are given without engagement.

这是我们船上交货价的价目单。所报价格没有约束力。

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