站不住脚[zhàn bu zhù jiǎo]
词典have not a leg to stand on：站不住脚。
词典be done for：不中用了；处境艰难，注定完蛋，肯定不行。
词典站不住脚的解释
词典be untenable：站不住脚。
词典cannot be justified：站不住脚。
站不住脚[zhàn bu zhù jiǎo]
have not a leg to stand on; be done for; be untenable; cannot be justified; cannot hold one's ground; cannot hold water; (What you said) doesn't hold water.; groundless; ill-founded; ill-grounded; impossible to defend; unable to consolidate one's position;
例：他的这种理论是站不住脚的。
He hasn't a leg to stand for this theory of his.
你的理由站不住脚。
Your argument is ill-founded.