您要查找的是不是：
- Placobdella okain. 台湾盾蛭
- Shortly after, Williams Malique (ANT) was pulled from the water with hand cramps along with Adu Opanka Okai (GHA), who was suffering mild hypothermia and leg cramps. （这么强度的比赛，出现呼吸困难急促、腿步抽筋和体温下降的不适也是很正常的事情。
- Placobdella 盾蛭属
- Placobdella mexicanan. 墨西哥盾蛭
- Placobdella okadain. 蛙盾蛭
- Placobdella ornatan. 润饰盾蛭
- Placobdella siamensisn. 暹罗盾蛭
- Placobdella fulvan. 棕褐盾蛭
- Okai Takashi 冈井隆(1928-),日本人,歌人。
- Okai Yoshirō 小粥义朗(1933-),日本人,官员。
- Okai 奥凯
- Okai Masayoshi 冈井政义
