1. 1〔交渉をまとめる〕
    • 100万円で手を打った
    • 「We struck a bargain [We came to terms] at a million yen.
  1. 2〔処置をする〕
    • 早急に手を打たないと取り返しのつかないことになる
    • If we don't 「do something [take some steps] immediately, the situation will get completely out of hand.
    • もう手の打ちようがない
    • There's nothing we can do now./It's hopeless [too late to do anything about it] now.