Instead of using a debit or credit card, a guest only needs to wave their wristband under a scanner to make payments.

无需使用借记卡或信用卡，游客只需在扫描仪下挥舞腕带即可完成支付。

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I was the only hotel guest.

我是旅馆的惟一客人。

《柯林斯英汉双解大词典》

Some only have cameos and guest roles that see them on screen for only a few seconds.

有些人只是客串角色，在屏幕上只出现了几秒钟。

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When planning his meal, the chef ensures each guest has only three to four portions of each small dish, ensuring people will have room for later courses.

WSJ: Many Small Plates Add Up to a Big Impression

He had only a guest appearance in English Vinglish and a forgettable role in Department.

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Jennifer Allen is with the Border Action Network, which is pushing for not only a guest worker program but legalization for millions of immigrants already here.

NPR: Immigration Stalemate Frustrates Arizona