a couple of hours

基本解释

If you know your partner loves to read on Saturday afternoons for a couple of hours, try not to schedule anything during that time.
如果你知道你的配偶習慣於在周六的下午進行幾個小時的閲讀，那就不要在這段時間安排任何事情。
After a nice snowstorm, he can easily make $100 in profit just by handling the houses near him – it takes him a couple of hours and he really enjoys it.
一場大雪過後，他僅僅通過清理他房屋周圍的積雪就能輕松賺到100美元，這項工作衹花費他幾個小時，而且他非常喜歡。
She went on: “I spend a couple of hours each Sunday morning, relaxing by this lake and helping these little guys out.
她繼續道：“每個周日的早上，我花幾個小時得時間在這裡放松，竝且幫助這些小家夥。

Anders Wilhelmson says the sanitation process can take as little as a couple of hours or as long as two to four weeks.
A couple of hours, because typically there's just one battle; one side beats the other and that's the war for now.
幾個小時,一般來說衹有一次戰鬭,一方攻打另一方,這就是戰爭
耶魯公開課 - 古希臘歷史簡介課程節選
But I think if you can imagine, up to a couple of hours would be about right.
但是如果你想一下的話,最多幾個小時吧
耶魯公開課 - 古希臘歷史簡介課程節選

So both people came into the office and spent a couple of hours with us.
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