get the upper hand

基本解释

Chinese negotiators often use booze to break down barriers—and to try to get the upper hand.
中方的談判代表通常在酒桌上破除隔閡，然後試圖佔上風。
The lack of folate might enable cancer to get the upper hand, allowing mutations to occur unchecked.
缺少葉酸則可能會使腫瘤佔上風，使之發生未加抑制的突變。
Even the number of civil wars that pit governments against rebel movements may be declining, as governments increasingly get the upper hand, as in Iraq, Colombia and Sri Lanka.
甚至政府與叛亂運動作戰的內戰數量可能也在減少，因爲政府越來越佔上風，比如在伊拉尅、哥倫比亞和斯裡蘭卡。

And so I think they are concerned that on national security the Republicans could get the upper hand and hurt Obama politically."

Economic stabilisation was undermined, and this helped Slobodan Milosovic to get the upper hand.
ECONOMIST: By invitation
Chinese negotiators often use booze to break down barriers—and to try to get the upper hand.
ECONOMIST: What it feels like to be bought by a Chinese firm
When things get staid and lose their volatility, the bad sides of human character get the upper hand: Greed and laziness.
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