coral hydranth的用法和樣例：
例句
- Actually, the term coral is much broader and refers to most of the animals in the class Hydrozoa of the Phylum Cnidaria.
其實(shí)珊瑚一詞所指的動(dòng)物甚多，包括大多數屬珊瑚蟲(chóng)綱及數動(dòng)屬水螅蟲(chóng)綱的刺胞動(dòng)物。 - Soft coral polyps differ from hard coral polyps in that they have eight tentacles while hard corals have multiples of six.
柔軟的珊瑚蟲(chóng)不同于硬珊瑚蟲(chóng)，前者有八條觸須而硬珊瑚蟲(chóng)達到軟珊瑚蟲(chóng)觸須的六倍。
