查询结果:

vt. 使震惊,使目瞪口呆;把…打昏,使昏迷
stunned, stunned, stunning, stuns.

来源于拉丁语动词ton.o, ton.are雷鸣 → -tun-( o←→ u)

拆分: s-(ex-变体) + -tun-雷鸣人听到雷鸣自然会“震惊”

同源词:
astonish

例:
We were stunned with/by the sudden news. 我们被这突如其来的消息惊呆了
He was temporarily stunned by the fall. 他被这一击打晕过去