imperturbable
adj. 冷静的;泰然自若的
例句
Thomas, of course, was cool and aloof and imperturbable.
当然,托马斯冷静、超脱且遇事沉着。
《柯林斯英汉双解大词典》
The doctor's indignation was wholly lost on his imperturbable rival.
医生的愤慨对于他的泰然自若的敌手也是毫无作用。
Her hands suddenly came together-her right and left hands each doing their own imperturbable thing-just like that.
她的手就这么突然合起来了,左手右手各弹一个旋律,就这样成功了。