I don't know what I've done to upset him, but if looks could kill...

我不知道做了什么惹他生气了，他那样子简直吓死人。

《牛津词典》

He didn't know why he'd done it, but the look in her eyes made him realize how cruel his prank was.

他不明白自己为什么要这样做，但她的眼神让他意识到，他的恶作剧有多么残酷。

youdao

He didn't know why he'd done it, but the look in her eyes made him realize how cruel his prank9 was.

他不明白自己为什么要这样做，但她的眼神让他意识到，他的恶作剧有多么残酷。

youdao

"You put your trust in doctors who you think know best but now I feel as if I murdered him because I might have done more, " she said.

BBC: Paul Ghuman