Which couple is concerned or concerned?

"Attach great importance to" and "attach great importance to" because only "attach great importance to" is an idiom and "attach great importance to" does not exist. So "much attention" is correct.

The so-called "being concerned" means being concerned by all relevant people.

However, the preparation of "much attention" means a lot. And "pay more attention" means to double, double.

Therefore, if "great attention" is not used as an idiom, it can still be used as a proverb or word. In other idioms, there is also the usage of "time".

Extended data:

Idioms or words that express people's concern, such as "very concerned" and "very concerned", are as follows:

Caring, meticulous, considerate, put yourself in the shoes, draw out a sword to help each other, be caring and attentive, give timely help in the snow, be anxious, be helpful, be caring and attentive, and put yourself in the shoes.

References:

Baidu encyclopedia-much attention