noun🔗Share鞘，囊，套。 Any external case or sheath."The pollen grain was protected by a tough, outer theca. "花粉粒被一层坚韧的外壳保护着。partanatomybiologyChat with AIVocabulary GamePractice Reading
noun🔗Share花药，药室 The pollen-producing organ usually found in pairs and forming an anther."The botanist pointed out the theca of the lily's stamen, explaining that it was one of the two compartments within the anther responsible for producing pollen. "那位植物学家指出了百合花雄蕊的药室，并解释说它是花药内负责产生花粉的两个腔室之一。biologyplantorganpartanatomyChat with AIVocabulary GamePractice Reading
noun🔗Share卵泡膜，卵鞘。 The twin layers of cells surrounding the basal lamina of an ovarian follicle."The theca, surrounding the developing egg, plays a crucial role in hormone production within the ovary. "包围着正在发育卵子的卵泡膜（卵鞘）在卵巢内的激素产生过程中起着至关重要的作用。anatomyorganbiologymedicinephysiologysexChat with AIVocabulary GamePractice Reading
noun🔗Share鞘，膜，外壳。 The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates."Under a microscope, the intricate beauty of the dinoflagellate's theca was clearly visible, protecting the cell within. "在显微镜下，可以清楚地看到甲藻外壳精巧美丽的结构，它保护着内部的细胞。biologymicroorganismplantorganismenvironmentecologyChat with AIVocabulary GamePractice Reading
noun🔗Share珊瑚杯壁，萼壁 The calcareous wall of a corallite, the exoskeleton of a coral polyp."The diver carefully brushed away sediment to reveal the delicate structure of the theca, the coral polyp's protective outer wall. "潜水员小心翼翼地刷去沉积物，露出了珊瑚杯壁精巧的结构，那是珊瑚虫用以保护自己的外壁。organismbiologyanimaloceanstructuregeologyChat with AIVocabulary GamePractice Reading
noun🔗Share圣体布盒，圣体匣 A case for the corporal cloth used in the Eucharist."The priest carefully placed the freshly laundered corporal cloth back into its theca after the morning's service. "早晨的礼拜仪式结束后，神父小心翼翼地将新洗好的圣体布放回它的圣体布盒里。religionritualChat with AIVocabulary GamePractice Reading
