stun
verb [ T ] uk/stʌn/ us/stʌn/ -nn-
(SHOCK)
使震惊；使惊讶
to shock or surprise someone very much
News of the disaster stunned people throughout the world. 灾难消息使全世界的人震惊。
She was stunned by the amount of support she received from well-wishers. 居然有这么多人送上祝福，他们的支持令她受宠若惊。
(MAKE UNCONSCIOUS)
使失去知觉，使昏迷;（尤指重击头部）把…打昏
to make a person or animal unconscious or unable to think normally, especially by hitting their head hard
Stunned by the impact, he lay on the ground wondering what had happened. 遭重击后，他躺在地上想弄清楚发生了什么事。
This injection stuns the rhinoceros, so we can examine it. 这支注射针剂可以把犀牛弄晕，然后我们就可以对它进行检查了。