这个问题我没辙了。
zhègè wèntí wǒ méizhé le 。
I have no solution to this problem.
面对这样的困难,我们真的没辙。
miànduì zhèyàng de kùnnán , wǒmen zhēnde méizhé 。
Facing such difficulties, we really have no way out.
他对这个复杂的情况感到没辙。
tā duì zhègè fùzá de qíngkuàng gǎndào méizhé 。
He feels completely at a loss with this complicated situation.