To overestimate one's own strength and attempt to resist a superior force; futile resistance against overwhelming odds; like a praying mantis trying to stop a chariot.
他试图单枪匹马对抗整个市场趋势，这种行为无异于怒臂当辙，结果只会是徒劳无功
He tried to single-handedly go against the entire market trend; such an act is no different from a praying mantis trying to stop a chariot, which will only lead to a futile effort.
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