sea-snail 短语 词形变化 sea-snails 复数 释义与例句 n. 1. Alternative form of sea snail. 词汇关系 名词 同义词 1 snailfish 上位词 3 gastropod scorpaenoid univalve 下位词 6 triton winkle periwinkle limpet neritid whelk