HSK 7-9
目不转睛
mùbùzhuǎnjīngunable to take one's eyes off (idiom); to gaze steadily; to stare
孩子们目不转睛地盯着屏幕。
Háizi men mùbùzhuǎnjīng de dīng zhe píngmù.
The children stared at the screen without taking their eyes off it.
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Appears across levels (7-9) in the HSK 3.0 word list.