tóu nǎo lěng jìng



mùlù ·yīngwénjièshì ·bāo hán cí ·gèngduōjiéguǒ... yīngwénjièshì n.:  levelheadedness,  sangfroid,  have a cool head,  be calm and collected,  sober-minded,  clear-minded bāo hán cí tóu nǎo lěng jìng de yī gè tóu nǎo lěng jìng de shí yè jiā