首当其冲 be the first to bear the brunt
Explanation
比喻最先受到攻击或遭到灾难。也指在事情发生或行动开始时处于最前面的位置，意味着承担着最大的风险或责任。
A metaphor for being the first to be attacked or suffer a disaster. It can also be used to refer to the position at the forefront when something happens or an action begins, meaning it bears the greatest risk or responsibility.
Origin Story
在古代的战国时代，各个诸侯国之间为了争夺地盘和权力，经常发生战争。有一次，齐国和楚国两国的大军在淮河边上相遇，准备决战。齐国军队以精锐著称，而楚国军队以人数众多而闻名。双方阵营都摆好了阵势，准备发动攻击。这时，一位齐国将领指着楚国军队的阵营，对身边的士兵说：“楚国军队这么多，我们应该选择他们最薄弱的地方进攻，这样才能取得胜利。”另一位将领听后说：“我们应该首当其冲，直接攻击楚国军队的中央，这样才能打乱他们的阵脚。”齐国大将军听了他们的建议，决定采取第二种方案，直接进攻楚国军队的中央。楚国军队没有料到齐军会如此勇猛，顿时乱成一团。齐军乘胜追击，最终取得了这场战争的胜利。
In ancient China, during the Warring States period, the various feudal states often fought wars to compete for territory and power. Once, the armies of Qi and Chu met on the bank of the Huai River, ready to fight a decisive battle. The Qi army was known for its elite troops, while the Chu army was known for its large numbers. Both camps had formed their formations and were preparing to launch an attack. At this time, a Qi general pointed to the Chu army's camp and said to his soldiers, “The Chu army is so large, we should choose their weakest point to attack, so that we can win.” Another general listened and said, “We should be at the forefront, directly attacking the center of the Chu army, so that we can disrupt their formation.” The general of Qi listened to their suggestions and decided to take the second option and attack the center of the Chu army directly. The Chu army did not expect the Qi army to be so brave and immediately fell into disarray. The Qi army pressed its advantage and eventually won this war.
Usage
这个成语主要用于比喻在某种情况下，最先遭受损失、承担责任或面临危险。
This idiom is mainly used to describe something that first suffers a loss, takes responsibility or faces danger.
Examples
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在经济危机中，许多企业首当其冲，受到严重打击。
zai jing ji wei ji zhong, xu duo qi ye shou dang qi chong, shou dao yan zhong da ji.
Many companies were the first to be hit hard in the economic crisis.
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这场比赛，我们队首当其冲，首先要面对强劲的对手。
zhe chang bi sai, wo men dui shou dang qi chong, shou xian yao mian dui qiang jin de dui shou.
In this game, our team is the first to face a strong opponent.
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面对突如其来的疫情，医护人员首当其冲，冲锋陷阵在抗疫一线。
mian dui tu ru qi lai de yi qing, yi hu ren yuan shou dang qi chong, chong feng xian zhen zai kang yi yi xian
In the face of the sudden epidemic, medical personnel were the first to fight on the front line of the fight against the epidemic.