从容不迫 calm and collected
Explanation
从容不迫形容人做事不慌不忙，沉着镇定。它强调的是一种在面对压力和挑战时，依然能够保持冷静、理智、不慌不乱的状态。
The idiom
Origin Story
传说唐代大诗人李白在一次宴会上，被一位权贵邀请作诗。这位权贵为了难为李白，故意在他面前放了一只盛满酒的酒杯，让李白在酒杯上写诗。李白见状，从容不迫地拿起毛笔，在酒杯上写下了一首诗，诗中表达了对权贵的讽刺。权贵看后，羞愧难当，只得悻悻地退去。
Legend has it that Li Bai, the great Tang dynasty poet, was invited to write a poem at a banquet by a nobleman. In order to embarrass Li Bai, the nobleman deliberately placed a wine cup filled with wine in front of him and asked Li Bai to write a poem on the wine cup. Seeing this, Li Bai calmly and collectedly picked up his brush and wrote a poem on the wine cup, the poem expressing satire against the nobleman. The nobleman was ashamed after reading it and had to retreat in frustration.
Usage
形容人做事不慌不忙，沉着镇定。在面对压力和挑战时，依然能够保持冷静、理智、不慌不乱的状态。
Describes a person who acts calmly and collectedly without being fazed by pressure or challenges.
Examples
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面对突如其来的事件，他依然从容不迫，镇定自若。
miàn duì tū rú ér lái de shì jiàn, tā yīrán cóng róng bù pò, zhèn dìng zì ruò.
He remained calm and collected in the face of the sudden event.
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在压力巨大的情况下，他依然能够从容不迫地完成任务。
zài yā lì jù dà de qíng kuàng xià, tā yīrán néng gòu cóng róng bù pò dì wán chéng rèn wù.
He was still able to complete the task calmly and collectedly under tremendous pressure.
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演讲时，他从容不迫，侃侃而谈，赢得了观众的掌声。
yǎn jiǎng shí, tā cóng róng bù pò, kǎn kǎn ér tán, yíng dé le guān zhòng de zhǎng shēng.
He spoke calmly and confidently during the speech, winning the applause of the audience.