Rra
abbr. 回歸再時(shí)效；余熱排出系統(tǒng)；輻射研究協(xié)會(huì)（Radiation Research Association）；橡膠再生劑（Rubber Reclaiming Agent）
??? 情景例句
This one over here, Mr. Carlson?
這張就擺這兒?jiǎn)?Carlson先生
You cannot flay the same ox twice.
一頭牛不能剝兩次皮。
This time they fixed heavy metal clamps to both sides of the dish so that they could fasten the chains.
這次，他們用沉重的金屬夾子把盤(pán)子夾住，以便往盤(pán)子上安裝鐵鏈。