noun🔗Share腹甲，胸甲 The nearly flat part of the shell structure of a tortoise or other animal, similar in composition to the carapace."The turtle rested on a warm rock, its plastron facing the sun. "这只乌龟趴在一块温暖的石头上，腹甲朝着太阳。animalpartanatomybiologystructureChat with AIVocabulary GamePractice Reading
noun🔗Share胸甲，护胸。 A half-jacket worn under the jacket for padding or for safety."The fencer wore a plastron under her jacket to protect her chest during practice. "击剑运动员在练习时，外套下面穿了一件护胸，用来保护胸部。wearbodysportmilitarystyleChat with AIVocabulary GamePractice Reading
noun🔗Share胸襟, 衬衫前襟 A man's shirt-bosom."He wore a starched plastron under his suit jacket, giving his formal outfit a crisp, clean look. "他西装外套里面穿了一件浆过的衬衫前襟，让他的正式着装看起来干净利落。appearancestylewearbodyChat with AIVocabulary GamePractice Reading
noun🔗Share胸饰，护胸。 An ornamental front panel on a woman's bodice."She sewed a lace plastron onto the front of her blouse to dress it up for the party. "她缝了一块蕾丝胸饰在衬衫前面，好让它更华丽，能穿去参加聚会。appearancewearstyleChat with AIVocabulary GamePractice Reading
noun🔗Share胸甲，护胸甲。 A breastplate."The fencer wore a thick, padded plastron under her jacket to protect her chest. "这位击剑运动员在外套下面穿了一件厚厚的加垫胸甲来保护胸部。wearbodymilitaryChat with AIVocabulary GamePractice Reading
noun🔗Share气腹，呼吸膜. A film of air trapped by specialized hairs against the body of an aquatic insect, and which acts as an external gill."The plastron of a diving beetle is not directly a source of oxygen, but acts as a gill, acquiring oxygen from the surrounding water."龙虱的气腹本身不是氧气的来源，而是像鳃一样，从周围的水中获取氧气。biologyinsectanimalnatureenvironmentphysiologystructurefunctionorganismecologyChat with AIVocabulary GamePractice Reading
