Unless directed differently, apply the UPC barcode label to the bottom or back of each piece.

把UPC条形码标签贴于每个箱子底部或者背面，除非有明显的不同。

youdao

Unless directed differently, apply the UPC barcode label to the bottom or back of each piece.

把UPC条形码标签贴于每个箱子底部或者背面，除非有明显的不同。

youdao