| 摘要 |
A key structure (100) for a portable electronic device includes a housing (10) and a key (20). The housing has a receiving portion (142). The receiving portion defines an engaging groove (1446), and a width of the engaging groove from one end to another end is gradually varied. The key is engaged with the receiving portion of the housing. The key includes an elastic portion (22) received in the engaging groove. The elastic portion is movably received in the engaging groove.
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