free time that you can use as you like
I read books in my spare time.
我在空闲时间读书。
not being used or needed now
Do you have a spare pen I can use?
你有闲置的笔可以借我用吗?
extra, kept for when you need it
Always carry a spare tire in your car.
车上总要备一个备用轮胎。
thin and often tall
The spare man moved quickly through the crowd.
那个瘦高的男人快速穿过人群。
to give time or money when it's hard for you
Can you spare a few minutes to help me?
你能抽出几分钟帮我一下吗?
to save someone from something bad
I'll spare you the details to avoid upsetting you.
为了避免让你难过,我就不说细节了。
to not harm or kill when others are harmed
The storm spared our house but damaged others.
风暴放过了我们的房子,但损坏了其他房屋。
to use as much as needed without limiting
They spared no expense on the wedding.
他们在婚礼上不惜花费。
to work very hard
He spared no effort to finish the project on time.
他不遗余力地按时完成了项目。
an extra item kept for replacement
I keep a spare key hidden outside my house.
我在房子外面藏了一把备用钥匙。
replacement parts for machines or cars
The mechanic ordered spare parts for the old engine.
机修工为旧发动机订购了备件。