The short-spined, motile toxopneustids (e.g., Lytechinus variegatus) have a delicate test, which limits them to areas with low wave impact.是什么意思_The short-spined, motile toxopneustids (e.g., Lytechinus variegatus) have a delicate test, which limits them to areas with low wave impact.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句