The thorns protect the young plant from browsers, but they also break up the wind currents, so that the cactus is wrapped in still air, and evaporation of moisture from the stem is kept very low.是什么意思_The thorns protect the young plant from browsers, but they also break up the wind currents, so that the cactus is wrapped in still air, and evaporation of moisture from the stem is kept very low.在线翻译_英语_读音_用法_例句