imperturbable /.impә'tә:bәbl/ GRE英语词汇 📖 中文释义 a. 沉着的, 泰然自若的, 镇静的 📘 English Definition(英文释义) s. not easily perturbed or excited or upset; marked by extreme calm and composure ← imperturbability I 字母词表 imperturbableness →