She has been attending upon her sick mother for years.

她侍奉她生病的母亲已有多年了。

《新英汉大辞典》

She has many servants attending upon her.

她有许多仆人侍候她。

youdao

Soon after, his friend, Robert George, drew an alligator that Lacoste had embroidered upon the blazers he wore when attending tennis events.

不久后，他的朋友罗伯特·乔治画了一条鳄鱼，拉科斯特便把它绣在了自己参加网球比赛时穿的外套上。

youdao

Yes, we would not let a mass murderer dictate the terms upon which we lead our lives or to strip away the enjoyment of simple pleasures like attending a professional sporting event.

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