mastic
n[U]
1 gum or resin from the bark of certain trees, used in making varnish 乳香树脂.
2 type of pliable cement used for waterproofing joints in window-frames, roofs, etc 胶合铺料, 胶粘水泥(作窗框、 屋顶等填缝防水用的).
🏥 医学释义
膏,胶,树脂
🗣️ 情景例句
He considers himself intelligent.
他认为自己很聪明。
Has he studied French very long?
他学习法语很长时间吗?
My friend fails to mention the long and friendless winter evenings in front of the TV -- virtually the only form of entertainment.