Estergum
松酯胶, 酯树胶
🗣️ 情景例句
Politics are a sensitive subject of conversation.
政治是交谈的敏感话题。
Mr. Wagner, do you have a hotel reservation?
华格纳先生，你预订过旅馆吗？
Glancing at it briefly, the dealer told him that it was worth $50.
古董商漫不经心看了一眼那幅画，告诉弗兰克那画值50英镑。