例句與造句

1. Lisa Rosenberger's 2001 phylogenetic analysis, based on morphological characters, found that the pale-edged stingray is sister to a clade containing the whitespotted whipray ( " Himantura gerrardi " ), the pearl stingray ( " D . margaritella " ), and the smooth butterfly ray ( " Gymnura micrura " ).
2. It's difficult to find smooth butterfly ray in a sentence. 用smooth butterfly ray造句挺難的