象棋术语,指一方活动一子以后,同时给对方两个方面的威胁.
栖息地的减少和全球变暖让这些稀有物种面临双重威胁。
"These species face a double whammy, " RAEI's Paul Hamilton said, referring to habitat loss and global warming.
面对着彗星和棉铃象甲的双重威胁，农场主们都一筹莫展。
Between the threats of comet and weevils, the farmers were running low on optimism.
为此，我们两国一直在密切合作以克服这双重威胁。
For that reason, our countries have been working closely to overcome both of these threats.
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