| 词汇 | ping-pong |
| 词源 | Ping-Pong. Ping-Pong is a trademark name used for table tennis, and was probably derived from the sound of the ball be- ing hit during the game. Ping-pong also means “to move back and forth rapidly from one thing to another,” as in “He was ping-ponged from one doctor to another,” this suggested by the rapid volleys in the game. |
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