with pleasure是什么的缩写

With pleasure的意思是：欣然；愉快地，高兴地，没问题。

With pleasure 不是缩写而一个介词短语。

Then I accept with pleasure!

那我很荣幸的接受了!

For decades, scientists have studied areas deep within the brain that seem associated with pleasure and addiction.

科学家们对我们大脑深处某些区域进行了长达几十年的研究，这些地方似乎与产生快感和让人上瘾颇有关联。