biform game双形式博弈
Form-biform两形的
biform imaging system双型成像系统
a biform crystal美人鱼的身体是半人半鱼的
"a biform crystal"; " the biform body of a mermaid"
ADJ（形容词） having or combining the characteristics of two forms, as a centaur 双型特质的; 如希腊神话中人头马身族