放血需要一把锋利的去皮刀或剔骨刀。

A sharp skinning or boning knife is appropriate for this part of the operation.

youdao

这些人每天全天都使用一把刀，他们不使用重的刀(除非是一把斩骨刀)。

These people use a knife all day every day... they will not put up with a heavy piece (unless it's a chopper).

youdao

这些人每天全天都使用一把刀，他们不使用重的刀(除非是一把斩骨刀)。

These people use a knife all day every day... they will not put up with a heavy piece (unless it's a chopper).

youdao