请问 This wine complements the food perfectly.中的perfectly是作状语,还是宾语补足语.

1.副词perfectly在句中作状语,并非宾语补足语.
2.This wine complements the food perfectly.
这酒完美地补充/补足了食物.
可以引申理解为：这酒是对食物的完美的补足,使其可称为盛宴.
3.如果是宾语补足语,则一般宾语（the food）和宾语补足语之间存在着主谓关系.
宾语补足语对宾语做出补充说明,表明宾语的身份/特征等.
如：I find learning English difficult.
其中宾语learning English和difficult之间可以写成：learning English is difficult.
再如：I saw him playing basketball yesterday afternoon.
其中宾语him和宾补可以写成：he was playing basketball yesterday afternoon.
再如：I saw the kite up and down.
其中宾语和宾补可以写成：the kite was/flied up and down.
4.但是此句的perfectly明显是用以说明动词complement的程度/方式,和宾语the food之间并没有内在的逻辑联系.
所以,它是状语,而不是宾语补足语.