With pleasure的意思是：欣然愉快地，高興地，沒問題。
With pleasure 不是縮寫而一個介詞短語。
Then I accept with pleasure!
那我很榮幸的接受了!
For decades， scientists have studied areas deep within the brain that seem associated with pleasure and addiction.
科學家們對我們大腦深處某些區域進行了長達幾十年的研究，這些地方似乎與產生快感和讓人上癮頗有關聯。
