I have a spare key in case I lose the original one.（我有一把备用钥匙，以防弄丢原来那把。）

She always keeps some spare change in her purse for emergencies.（她总是在钱包里留些零钱以备不时之需。）

Do you have any spare time this afternoon? We could go for a walk.（你今天下午有空吗？我们可以去散步。）

The mechanic had to find a spare part to fix my car.（机械师得找一个备件来修理我的车。）

He has a spare bedroom that he uses as a study.（他有一间空余的卧室，他用作书房。）

They brought spare clothes in case they got wet.（他们带了备用衣服，以防弄湿。）

Can you spare me a few minutes? I need to talk to you.（你能给我几分钟时间吗？我需要和你谈谈。）

We should always have some spare food at home in case of a power outage.（我们家里应该总是备些备用食物，以防停电。）

The athlete carried a spare pair of running shoes with him.（这位运动员随身携带了一双备用跑鞋。）

There's a spare blanket in the closet if you get cold.（如果你觉得冷，衣柜里有一条备用毛毯。）

I don't have any spare tickets for the concert.（我没有多余的音乐会门票了。）

Spare no effort in achieving your goals.（不遗余力地实现你的目标。）

She gave me a spare copy of the book.（她给了我一本这本书的备用副本。）

The hotel had a spare room available for us.（酒店有一间空房可供我们使用。）

He spent his spare time reading books.（他把业余时间花在读书上。）

Do you know where I can buy a spare battery for my phone?（你知道我在哪里可以买到我手机的备用电池吗？） We need to find a spare tire for the car before we start the long journey.（在开始长途旅行之前，我们得给汽车找一个备用轮胎。）

She made a spare key for her neighbor.（她给邻居配了一把备用钥匙。）

The team had a spare player on the bench in case of an injury.（球队在替补席上有一名替补球员，以防有人受伤。）

I keep a spare set of headphones at work.（我在工作的地方留了一副备用耳机。

）