Definition
飞速 (fēi sù) means 'rapidly, at lightning speed' and describes very fast action or movement, often for continuous processes (e.g., technology development). It focuses on extreme speed itself, unlike 赶快/赶紧 which emphasize acting quickly due to urgency, or 火速 which conveys a sense of emergency and formality.
adverb
rapidlyat lightning speed
Examples
- 飞速，。Kējì fēi sù fāzhǎn, gǎibiàn zhe rénmen de shēnghuó.Technology is developing rapidly, changing people's lives.
- 飞速。Huǒchē fēi sù shǐ guò zhàntái.The train sped swiftly through the platform.
- 飞速。Tā fēi sù de xiě wán le zuòyè.He finished his homework at lightning speed.
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