Making trouble means ignoring and letting things go bad.
Showing off is another way of saying showing off. It refers to when things can no longer develop in a good direction, so they simply no longer take measures to control them but allow them to continue to develop in a bad direction. It has a similar meaning to the word "break the can, break and throw". It is also a hot word on the Internet, and it can also be directly said to be "displayed".
Introduction:
Bad: làn ㄌㄢˋ. The radical "Lan" is simplified to "LAN", which is simplified based on the strokes saved in ancient calligraphy. (Calligraphy Xianshengbi was simplified to Lan. Then the radical "Lan" was simplified to "Lan"). "Shuowen Jiezi": "Lan, which one. From the sound of fire and orchid". Boiling with fire to destroy and decompose solid matter is a paradigm of rot.
Original meaning: becoming soft due to overripeness. Such as: rotten, boiled.
Extension: extended meaning "collapse, corruption". For example: The enemy is dying day by day.
Extended meaning: Extended meaning is "extremely deep". For example: Memorize the lines by heart.
Extension: also used as a surname.