W: At sight of course.

W：当然是即期的。

youdao

I faint at the sight of blood.

我一看见血就晕。

《柯林斯英汉双解大词典》

His heart lifted at the sight of her.

他一看见她心里就高兴起来了。

《牛津词典》

But she had regained her sight. At Perkins,she had learned the newest methods of teaching the blind.

VOA: special.2009.11.08

Why isn't sight like touch, diffused through all parts of the body "that she might look at will through every pore?"

为什么视力不能像触觉那样遍布人体各个部位,那样“她就能看到身体的每个毛孔“

耶鲁公开课 - 弥尔顿课程节选

Of course our heart palpitates at the sight of the crowd.

当然面对一群人时,我们心跳加快。

耶鲁公开课 - 心理学导论课程节选

He initially rejected the opportunity to refer the incident, but his attention was drawn to the big screen when the Indian section of the crowd reacted with howls of derision at the sight of Collingwood's bat short of the crease.

BBC: Thrilling India win levels series

For those who recoil in shock at the sight of some of Tokyo's more offbeat architectural offerings, there is at least some consolation.

CNN: AFTER THE BANG

"When you walk in, you are overcome by the smell of decay, and by awe at the sight of these staggeringly high piles of paper, " said Kate Doyle, of the National Security Archive, an American campaign group that specialises in tracing documents.

BBC: NEWS | Americas | Guatemala secret files uncovered