Any of various hard resins from trees of the family Dipterocarpaceae and of the genus Agathis; especially the amboyna pine.
坚硬的取自龙脑香科和贝壳杉属树种的树脂,尤其是青龙木。
简答网 · 双语娱乐资讯
简答网 · 双语新闻
简答网 · 中考英语
简答网 · 高考英语