例文
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- Always be visible, and make sure your lights are in proper working order.
- It means that the instruments used were in proper working order.
- Are the latches sturdy and in proper working order?
- They would be the ones best certified to ensure the watch is in proper working order.
- Gutters, leaders and drainpipes, Holtzman said, should be cleaned and in proper working order and securely fastened in place.