他们搜寻了幸存者，但希望渺茫。

They searched for survivors but it was ___hopeless.

她很沮丧，对未来感到完全绝望。

She was depressed and felt totally ___hopeless about the future.

我一直想在下棋时打败电脑，但这感觉毫无希望。

I keep trying to beat the computer at chess, but it feels ___hopeless.