| 单词 | SAM |
| 释义 | SAM /sam/, n. 1. surface-to-air missile. 2. Space Available Mail: a special air service for sending parcels weighing up to 15 lbs. (6.8 kg) to overseas members of the armed forces: only the regular parcel post rate to the U.S. port of shipment is charged. Cf. PAL. See shared-appreciation mortgage. |
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