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谈论美国在世界上的作用不断下滑俨然已成为一种时髦。
It is fashionable to talk about America's shrinking role in the world.
youdao
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他试着爬上山坡，却不断地往下滑。
He tried to climb the hill but kept sliding back down.
youdao
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他试着爬上山坡，却不断地往下滑。
He tried to climb the hill but kept sliding back down.
youdao