Zài zhòngrén de zhùshì xià, tā tàirán-zìruò de zǒu shàng jiǎngtái.
Under everyone's gaze, she walked onto the stage with perfect composure.
Tips
usage
Used to praise someone's poise under pressure - emergencies, crowds, criticism. Compare with 镇定自若, which is nearly synonymous but emphasizes 'staying calm' rather than 'natural ease.'
memory
Break it down: 泰然 ('at peace') + 自若 ('as one's usual self') = behaving exactly as you normally would, no matter what's happening around you.
