I like Chinese food very much and I think Chinese cooking is the best in the world.

我非常喜欢中国饭菜，并且我认为中国的烹饪是世界上最好的。

Do have some more, there's plenty left.

多吃一点，还有很多呢！

Fine, Mr. Wrigley.

好的，威格雷先生。

OK. Since you put it this way. I'll have to comply.

好吧。既然你这么说，我只好同意了。

Prices are always negotiable.

价钱总是可以商量的。

If the problem is in the goods itself, you may make a claim on the supplier.

如果问题在货物本身，你可以向供货方提出索赔。