o ab

常见例句

There are four main blood types: A, B, AB and O and each blood type is either Rh positive or negative.
人有四种主要血型：A、B、AB和O，每种血型要么是Rh阳性要么是Rh阴性。
Well, some of that blood may have been used to find your blood type – A, B, AB, O.
那些血有一部分可能已用于检查你的血型——A型，B型，AB型或O型。
The books' publisher, Bungeisha, says the series - one each for types B, O, A, and AB - has combined sales of well over 5 million copies.
书籍出版商Bungeisha说，该四套书籍——其中每种都分别包括B型、O型、A型和AB型——已经创造了超过500万份的销售数量。