HSK 7-9
出动
chūdòng动
to start out on a trip; to dispatch troops
消防队迅速出动赶往现场。
Xiāo fáng duì xùn sù chū dòng gǎn wǎng xiàn chǎng.
The fire brigade was dispatched rapidly to the scene.
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Appears across levels (7-9) in the HSK 3.0 word list.