If the threads need to be trimmed during sewing, this device can protect the trimmer from falling.

如果需要在线程缝纫裁剪，这个装置可以保护范围的微调。

youdao

If the threads need to be trimmed during sewing, this device can protect the trimmer from falling.

如果需要在线程缝纫裁剪，这个装置可以保护范围的微调。

youdao