to double down
[phrase form: double]
01
加倍努力, 更加坚定
to become more determined or committed to a course of action or one's beliefs, especially when facing challenges or criticism
例子
Despite the setbacks, Sarah decided to double down on her studies and work even harder to achieve her goals.
尽管遭遇挫折，莎拉决定加倍努力学习，更加努力地工作以实现她的目标。
Instead of giving up, the team doubled down on their efforts, putting in extra hours to finish the project on time.
团队没有放弃，而是加倍努力，投入额外的时间按时完成项目。
02
加倍下注, 进行双倍下注
(in blackjack) to increase the initial bet after receiving the first two cards, with the agreement to draw only one additional card
例子
In blackjack, if you 're dealt a total of 11, it 's a good idea to double down to increase your chances of winning.
在二十一点中，如果你被发到的牌总数为11，加倍下注以增加获胜机会是个好主意。
The player decided to double down when they were dealt a 9 and a 2, hoping for a good third card to improve their hand.
当玩家拿到9和2时，他们决定加倍，希望能拿到一张好的第三张牌来改善手牌。
