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
worrying about him.
为他操心。
Every tree is known by its own fruit.
观其言行，知其为人。
Come and help!
咱们去帮帮忙吧！