The offending pet owners may not have been foreigners, but the fish clearly were (originating in South America); and ferocious ones with big teeth at that.

虽然犯错的宠物主人并不一定是外国人，但这鱼（原产于南美）是从国外来的却明白无误，而且它满口獠牙，凶猛无比。

youdao

Congressional lawmakers might sharpen these "teeth" by providing that a transgression will trigger a temporary freeze on some portion of the offending department's appropriations.

FORBES: Fact and Comment