Beta hydroxybutyric acid on the other hand, even though it's still one of the ketone bodies, isn't technically a ketoacid since its ketone group has been reduced to a hydroxyl group.

而β-羟基丁虽说也，不，因为它的基团还原成了羟基。

While carboxylic acids are ketones bonded to an OH group instead of an R group, and ethers are just alcohols bonded to an R-group instead of a hydrogen.

虽然羧与一个羟基（OH）相连而不与R基团相连，而醚则醇与一个R基团相连而不与氢原子相连。

After that happens, the liver turns the fatty acids into ketone bodies, like acetoacetic acid and beta hydroxybutyric acid; acetoacetic acid is a ketoacid because it has a ketone group and a carboxylic acid group.

此后，肝把脂肪转化成，比如乙酰乙、β-羟基丁；乙酰乙一种，因为它有基团和羧基团。