| 摘要 |
An electronic device includes an air dam module. The air dam module includes a frame, a first rotating member, and a second rotating member. The frame defines a vent. The first rotating member is rotatably received in the vent, to vertically block a lower half of the vent by due to gravity. The second rotating member is rotatably received in the vent, to vertically block an upper half of the vent by due to gravity.
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