Are you sure it's all right for me to leave early?

你认为我早离开一定没问题吗？

《牛津词典》

Make sure it's free of distractions, and—for primary school children at least—somewhere near you, so you can answer questions and offer encouragement.

确保他们不受干扰，而且至少对于小学生来说，要让他们在你附近，这样你就可以回答问题并给予鼓励。

youdao

If you would like to start trampolining, you may first need to ask a doctor to make sure it's a safe activity for you.

如果你想开始玩蹦床，你可能首先需要请医生确保这对你是一项安全的活动。

youdao

Before eating the last slice, you could check with your friends to make sure it's alright for you to delve in.

在伸手拿最后那片披萨前，你可以跟你的朋友确认下，你吃完最后一片有没有关系。

Is it okay 课堂 - SpeakingMax英语口语达人

Don't say what you don't know for sure until it's finally decided.

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It's also going to make sure that you're not paying as much for gas.

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The best bet would be to rent this one first to make sure it's what you're looking for.

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