| 1 | He put a coin into the insertion slot. | |
| 2 | Whenever she was in doubt,she often flipped up a coin. | |
| 3 | They put three money in a fare-box instead. | |
| 4 | Pick up, the receiver and drop a coin into the slot. | |
| 5 | Let's say the outcome of an experiment, like tossing a coin. |
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