塞子；栓子：用来填紧洞孔的物体，如软木塞或一团布；塞子。
An object, such as a cork or a wad of cloth, used to fill a hole tightly; a stopper.
周皮木质根或干的外层组织，包括软木形成层和形成层的产物，如软木。
The outer layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it, such as cork.
救生圈，救生衣：一种有浮力的装置，如软木或聚苯乙烯圈，用来使人能浮在水中。
A buoyant device, such as a cork or polystyrene ring, for keeping a person afloat in water.
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