Estergum
松酯胶, 酯树胶
🗣️ 情景例句
Good people are the most valuable commodity a company can possess.
人才是一家公司可以拥有的最宝贵的财富。
Better wear out than rust out.
与其闲散不如忙碌。
The experts were now fully convinced that the animal was a puma,
专家们如今已经完全肯定那只动物就是美洲狮，