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。

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。