He should think carefully about actions like this which play into the hands of his opponents.

他应该留神这类对对手有利的行为。

《柯林斯英汉双解大词典》

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It's not the same as in the notorious Ultimate Bet scandal, where former employees managed to get information about opponents' cards during live play.

这和臭名昭著的极限搏击扑克丑闻是不一样的，在那个丑闻里有前任雇员设法用转播录像里知道了对手的牌。

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Teams play their group opponents once.

VOA: special.2010.06.09

But hoping that one's opponents will play ball and hit home their flaws is a dangerous game.

BBC: NEWS | Americas | Debating the debates

The hosts overcame a nervy start to take advantage of some tired Warrington defence and put a dent in their opponents' play-off hopes.

BBC: Wigan 36-16 Warrington

The second half was remarkable in that there was only one score, a Skrela penalty in the 58th minute, and it showed that once Glasgow had ceased to be in awe of their illustrious opponents they could play a bit of rugby as a raft of unforced errors haunted the Toulouse backs.

BBC: Glasgow Warriors 16-28 Toulouse