| 释义 |
〔roll〕To take the shape of a ball or cylinder:使呈球状或圆筒状:〔pear〕The fruit of this tree, spherical at the base and tapering toward the stalk.梨:这种树结的果实,底部呈球状,柄部逐渐变尖〔spheroplast〕A bacterial cell whose cell wall is absent or deficient, causing it to have a spherical form.原生质:因无细胞或细胞壁不完全而导致其呈球状的一种细菌细胞 |