1. chess：chemical shiftselective saturation; 及化学位移选择饱和

1. 国际象棋
    Chess is a game for two people, played on a chessboard. Each player has 16 pieces, including a king. Your aim is to move your pieces so that your opponent''s king cannot escape being taken.

    e.g. ...the world chess championships.
           国际象棋世界冠军

1. a board game for two players who move their 16 pieces according to specific rules
    the object is to checkmate the opponent''s king

    Synonym: chess game

2. weedy annual native to Europe but widely distributed as a weed especially in wheat

    Synonym: cheatBromus secalinus