im.per.turb.a.bleadj.(形容词)Unshakably calm and collected.See Synonyms at cool 沉着的:不可动摇地冷静和精神集中的参见 cool【引伸】im.perturb.abil.ity 或im.perturb.ablenessn.(名词)im.perturb.ablyadv.(副词)