| 摘要 |
A cap is provided for sealing a liquid container such as a water bottle. The cap may include a cap body with an outer annular wall engaging the bottle neck, and an inner annular wall with a plug gripping formation engaging a cap gripping formation on a cap plug. The cap body and the cap plug may be attached by a tether to ensure that the cap plug does not completely disassociate from the cap during liquid container removal and replacement. A method for using such a cap, including various embodiments of the cap body and cap plug, is also disclosed and claimed.
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