safety pin
柯林斯词典
1. N-COUNT A safety pin is a bent metal pin used for fastening things together. The point of the pin has a cover so that when the pin is closed it cannot hurt anyone. 安全別針
...trousers which were held together with safety pins. …用幾個安全別針別起來的褲子。
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safety pin (safety pins)
剑桥词典
- a pin used for fastening things, especially cloth , which has a round end into which the sharp point fits , so that it is covered and cannot stick into you
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