B
生物医药大词典
by MedSci
菜单
词典
分类
百科
诗词
背单词
英文名
DeepEvidence ↗
确认登录状态…
例句 /
Spider silk is mainly made up of proteins.
Spider silk is mainly made up of proteins.
蜘蛛丝主要由蛋白质构成。