连贯性：你的外贸开发信是否清晰明了、容易阅读、段与段之间的过渡自然、流畅？
Coherence: Does your letter clear enough and easy to read? Is the transition of the segments natural and smooth?
连贯性：你的外贸开发信是否清晰明了、容易阅读、段与段之间的过渡自然、流畅？
Coherence: Does your letter clear enough and easy to read? Is the transition of the segments natural and smooth?
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