那名士兵试图鼓起勇气面对敌人。
The soldier tried to ___summon up the courage to face the enemy.
女巫念动咒语,召唤出了一只守护精灵。
The witch chanted a spell to ___summon a protective spirit.
他在比赛前努力聚集最后的力量。
He tried to ___summon his last bit of strength before the match.