Some blatantly copy major brands, producing knock-offs with slight twists in their names, others come up with special makes of their own.

有的堂而皇之的抄袭著名品牌，仅仅在名字上做一点改动，而其他的，制造出自己的品牌。

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Some blatantly copy major brands, producing knock-offs with slight twists in their names, others come up with special makes of their own.

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Second, biologics are really difficult to copy, and thus even after the patents expire, knock-off biologics (biosimilars) are far less a threat than knock-off small molecules (generics).

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