HSK 7-9
扰乱
rǎoluàn动
to disturb; to perturb; to harass
噪声扰乱了课堂秩序。
Zàoshēng rǎoluàn le kètáng zhìxù.
The noise disrupted order in the classroom.
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Appears across levels (7-9) in the HSK 3.0 word list.