释义
〈非正式〉赞同；赞赏，满意
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plans to build a house on the site have been given the thumbs down by the Department of the Environment .环境部反对在这个地方建房的计划。［ORIGIN with reference to the signal of approval or disapproval， used by spectators at a Roman amphitheatre; the sense has been reversed， as the Romans used ‘thumbs down’ to signify that a beaten gladiator had performed well and should be spared， and ‘thumbs up’ to call for his death.］under someone's thumb completely under someone's influence or control在某人的支配（或控制）下，在某人的巨大影响之下。
