For decoration only not for sell.

第一句可能是非卖品，用于装饰。

Sky blue three month for sell.

三个月了天空蓝出售！

But I'm so sorry; that is not for sell.

但是非常抱歉，它是非卖品。

On the basis of research on com harvesters at home and abroad, a double head of picker and forage for sell-walk corn harvester should be designed.

在国内外玉米联合收获机研究的基础上，设计研制出一种用于自走式玉米联合收获机上集果穗和茎秆同时收获的复式玉米联合收获台。