frond-likeBNC¹⁴⁴⁶⁶⁴⁺³ 例句 However, later that year, when Sprigg found the frond-like forms he called Dickinsonia , he was certain that such geometrical impressions could have been made only by living creatures. 同年晚些时候,斯普里格又发现了一些叶状的、他称之为“狄更逊水母 Dickinsonia”的印记,他于是确信,这种地质印记只能是生物留下的。 yeeyan