孤註一擲
Bet one's bottom dollar on.
Put all one's eggs in one basket.
Win the horse or lose the saddle.
eg：Robert bets his bottom dollar on the horse he is sure to win.
中英俚語俗語來源：元史 · 伯顏傳：" 今日我宋天下，猶賭博孤註，輸贏在此一 擲耳。 "
同義詞：竭盡全力 Shoot one's bolt.
反義詞：留有一手 Have a second string to one's bow.
