应者云集 Many respond and gather
Explanation
形容响应的人很多，像云一样聚集在一起。
Describes a large number of people responding to a call and gathering together, like clouds in the sky.
Origin Story
话说唐朝时期，一位名叫李白的诗人，其才华横溢，名震天下。一日，他来到一座热闹的城市，准备举办一场诗会。消息一出，便如春雷乍动，传遍了大江南北。诗会的日期临近，人们纷纷从各地赶来，都想一睹诗仙的风采，聆听他那富有感染力的诗篇。诗会当天，城中更是人山人海，应者云集，就连城外的乡民也慕名而来。李白站在高台上，看着台下黑压压的人群，心中充满了欣慰与自豪。他朗诵的诗歌声情并茂，引来阵阵喝彩，人们沉浸在他的诗歌世界里，久久不愿离去。这场诗会，不仅展现了李白的非凡才华，也体现了当时人们对诗歌的热爱。
During the Tang Dynasty, a renowned poet named Li Bai was known for his exceptional talent. One day, he announced a poetry gathering in a bustling city. The news spread like wildfire, reaching all corners of the land. As the day approached, people from various regions flocked to the city, eager to witness the poet's presence and listen to his captivating verses. On the day of the gathering, the city was packed with an immense crowd; even villagers from the outskirts came to witness the event. Li Bai, standing on a raised platform, felt a surge of satisfaction and pride as he saw the vast sea of people below. His passionate recitation of poetry evoked thunderous applause, and the audience was completely enthralled by his art.
Usage
多用于书面语，形容响应的人很多。
Mostly used in written language, to describe many people responding.
Examples
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这次活动，应者云集，场面十分壮观！
zheci huodong yingzhe yunji changmian shifen zhuangguan
The event drew a large crowd.
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他的演讲非常精彩，应者云集，掌声雷动。
ta de yanjiang feichang jingcai yingzhe yunji zhangsheng leidong
His speech was so brilliant that many people attended and applauded enthusiastically..