| 词汇 | ping-pong |
| 词根词缀 | 词源： ping-pong (n.) 1900, as Ping-Pong, trademark for table tennis equipment (Parker Brothers). Both words are imitative of the sound of the ball hitting the paddle; from ping (q.v.) + pong, attested from 1823. The verb is from 1901; in the figurative sense, 1952. |
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