Still perhaps: once in a way.

不过，也许偶尔要换换口味。

"Well, I don't mind," said the Horse. "Not for once in a way. Up you get."

“好，我不介意，”马说，“不介意驮你一次。上来吧。”

Shake hands， Heathcliff，‘ said Mr. Earnshaw， condescendingly; ‘once in a way， that is permitted.‘

“握握手，希斯克利夫，”恩肖先生温和地说，“偶尔允许这样做。”

Life to us all is just once in a way, and no one is justified to take life away from anybody under any medical conditions with any means.

生命属于我们只有一次，无论我们处于何等医学状态，任何人都没有道理以任何手段剥夺任何人的生命。

For a long time now, I have carried the children in swaddling-clothes into the town, so for once in a way I can fetch a little Prince out of the well.

我给城里送婴儿已有好长的时间啦，也许碰巧我能从井里叼出一个小王子呐。