plug away; plug into; plump up; pootle along; pop down

plug away
努力不懈地做 (尤指困難的事情)
Boris has been plugging away at his homework for hours. (包里斯已經做了好幾個小時的功課了)

plug into +
They’re really plugged into the popular music scene. (他們真的踏入流行音樂界了)
They also plug into the research facilities available, and license technology from different sources. (他們也開始使用可用的研究設施,並從不同來源取得技術授權)

plump * up +
拍打 (枕頭、墊子等) 使之鼓起、膨鬆;使豐滿
She tidied the room and plumped up the cushions. (她收拾好房間並把墊子拍得鬆鬆的)
Lips can be plumped up with injections. (嘴唇可以用注射的方式變豐滿)