他说不准他到底是希望她留下还是离开。

He was not sure whether he wished her to stay or go.

《牛津词典》

当店员看到一张慈祥又印满皱纹的脸上带着歉意的微笑时，她像生了根似的站在地上，不知道是该留下还是离开。

When the clerk saw a kind face wrinkled in an apologetic smile, she stood rooted to the ground, wondering whether to stay or leave.

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当客人要离开时，主人仍然可以礼貌地请他们留下。

When the guests are to leave, the host may still politely ask them to stay.

youdao

And now let's suppose that your parents are going away for the weekend and they leave you with the following instructions: If it's raining tomorrow morning, when you wake up, you are to close the windows, open the door and let the cat in, phone the grocer and have him send over the following list of groceries. All right.

现在假设你们的父母这周末,离开了，给你们留下了,以下的一些指示：,如果明天早上下雨了，醒来的时候，要把窗户关好，打开门,让猫进来，打电话给杂货店并且让他,送来以下的生活用品，好的。

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so you can either leave or you can leave the dog here. You give it up. You surrender the dog."

所以你可以离开，也可以把狗留下。你只是把狗放弃了。”

与流浪狗的相遇 - SpeakingMax英语口语达人