R-values
(r-value 的复数) n. 热阻（材料抗热流能力的量度）
🧩 词语组成解析
n. 对价值的看法, 准则, 标准, 价值观念
🗣️ 情景例句
Could you explain it more precisely for us?
您可不可以讲得详细一点？
Do not through fear of poverty surrender liberty.
不要因为怕贫困而舍去自由。
I got up early next morning hoping to find that the ants had given up in despair.
第二天早上，我起床后希望看见蚂蚁已因无望而放弃了尝试，