Once or twice March had caught sight of the white tip of his brush, or the ruddy shadow of him in the deep grass, and she had let fire at him.

有一两次，马奇看见了他刷子的白色尖头，或是他在深草丛中的红色影子，她便朝他开火。

youdao

All at once, he caught sight of the two little ragged boys behind the green swan-hutch.

忽然间，他发现了这两个衣衫褴褛的孩子，一动不动地站在天鹅的绿色小屋后面。

youdao

The weather suddenly grew cooler, and almost at once the leaves turned garish shades of yellow and red, so bold that the mere sight of trees hurt my eyes.

天气突然转凉，转眼间，树叶变成一片绚丽的红黄色，色调如此鲜丽，以致我看到树木就觉得眼睛刺痛。

youdao

Once we spent the holidays high up in the Swiss Alps, where my body stiffened at the sight of deep hollow chasms emptied out of the rocky earth.

NEWYORKER: Naima

The wild basil is still in my hand and as I chew a green leaf, releasing its strong, earthy flavours, the colours of Ibiza seem at once to be all around me: in taste, smell, sound and sight.

BBC: The three colours of Ibiza