HSK 7-9
发抖
fādǒu动
to tremble; to shake; to shiver
风太冷孩子冻得直发抖。
Fēng tài lěng hái zi dòng de zhí fā dǒu.
The cold wind made the child shiver continuously.
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Appears across levels (7-9) in the HSK 3.0 word list.