He had a minor operation to remove a cyst.

他做了一个切除了囊肿的小手术。

《柯林斯英汉双解大词典》

A minor operation is one performed on somebody else.

给别人做的手术都是小手术。

youdao

Tomorrow I've to go into hospital-Just a minor operation.

明天我要去住院——只是动个小手术。

youdao

He accepted the award in a wheelchair after a minor operation became major ankle surgery.

VOA: special.2010.06.02

It was her first hospital stay since 2002 when she was treated at the same hospital for a minor knee operation and had minor, non-cancerous lesions removed from her face.

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The new device is inserted during a relatively minor operation and patients are out of hospital the same day.

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She was last in hospital 10 years ago for a minor knee operation.

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