铁树开花

Traditional form:

鐵樹開花

Pinyin (reading):

tiěshùkāihuā

Definitions:

• lit. the iron tree blooms (idiom)
• a highly improbable or extremely rare occurrence

Characters:

• 铁 - iron; strong, solid, firm
• 树 - tree; to plant; to set up, to establish
• 开 - to open; to start, to initiate, to begin
• 花 - flower, blossom; to spend (time or money)

Traditional characters:

• 鐵 - iron; strong, solid, firm
• 樹 - tree; to plant; to set up, to establish
• 開 - to open; to start, to initiate, to begin
• 花 - flower, blossom; to spend (time or money)