回天无力

unable to turn around a hopeless situation (idiom) / to fail to save the situation

to circle / to go back / to turn around / to answer / to return / to revolve / Hui ethnic group (Chinese Muslims) / time / classifier for acts of a play / section or chapter (of a classic book)

to curve / to return / to revolve

variant of 迴|回[hui2]

to reverse a desperate situation

day / sky / heaven

not to have / no / none / not / to lack / un- / -less

powerless / lacking strength

power / force / strength / ability / strenuously