例句
They tested two types of mucilage — a gelatinous substance produced by the cactus — in contaminated water.
他们在被污染的水中测试了两种粘液——仙人掌分泌的胶状物质。
When the trap door shuts, the plant excretes mucilage next to a special cuticle around the door, creating a watertight seal.
当陷阱阀门关闭的时候，植物在阀门周围的特殊角质层上分泌粘液，形成不透水密封垫。