Tā dàxué bìyè hòu jìn le Zìjié, zuò tuījiàn suànfǎ.
After graduating he joined ByteDance and worked on recommendation algorithms.
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usage
One 字节 is eight 比特 'bits'. Bigger units add a prefix: 千字节 'kilobyte', 兆字节 'megabyte'. In tech circles 字节 alone is also the everyday name for the company 字节跳动, ByteDance.