| 释义 |
铁树开花tiěshù kāi huā〈比喻fig.〉事情非常罕见或极难实现。苏铁原产热带,不常开花,移植北方后,往往多年才开一次。{iron tree in blossom; sth. seldom seen or hardly realized. Sago cycas originally grows in the tropical zone and seldom blooms. After it is transplanted in the north, it blooms once in many years.} |