summon up
US /ˈsʌm.ən ʌp/
UK /ˈsʌm.ən ʌp/

短语动词
1.
2.
召唤, 使出现
to cause something to appear or be available, especially with effort or difficulty
示例:
•
He managed to summon up a smile despite his pain.
尽管很痛苦,他还是设法挤出一个微笑。
•
The magician tried to summon up a spirit.
魔术师试图召唤一个灵魂。
在 Lingoland 学习这个单词