Chinese phrase
不成立 bù chéng lì
Meaning
doesn't hold up
When to use it
Shows that an idea or excuse is not valid or convincing. It is common in everyday speech and can sound direct but not rude.
Example dialogue
他又迟到了。 tā yòu chí dào le
He was late again.
他的借口不成立。 tā de jiè kǒu bù chéng lì
His excuse doesn't hold up.