unused

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
指物品未被使用或闲置的状态,强调当前或过去没有发挥其功能。

用法要点

句型搭配

常用于描述物品未被使用的状态,可作定语或表语,强调闲置或废弃。

• The unused room is dusty.
• This ticket remains unused.
• Unused equipment should be stored properly.

介词用法

常与介词'for'连用表示闲置时间,或与'by'表示未被某人使用。

• Unused for years, the machine rusted.
• The computer is unused by the staff.
• Unused in daily operations.

语域说明

适用于日常、商务和学术语境,中性词,无特殊情感色彩,但可能隐含浪费或未充分利用。

• Unused vacation days will expire.
• The unused data is archived.
• Unused funds were returned.

基础例句

I found an unused notebook in the drawer.

我在抽屉里发现了一本没用过的笔记本。

The old bike has been unused for months.

那辆旧自行车已经好几个月没用了。

She left the food unused in the fridge.

她把食物留在冰箱里没动。

We have some unused tickets for the concert.

我们有一些没用的音乐会门票。

高级例句

The company reported unused assets worth $500,000 in the financial statement.

公司在财务报表中报告了价值50万美元的未使用资产。

Unused laboratory equipment must be properly maintained to prevent degradation.

未使用的实验室设备必须妥善维护以防止老化。

The study analyzed the impact of unused vacation days on employee productivity.

这项研究分析了未使用的休假天数对员工生产力的影响。

Unused data storage capacity can be reallocated to optimize system performance.

未使用的数据存储容量可以重新分配以优化系统性能。

高频搭配

verb

remain unusedleave unusedkeep unusedgo unusedstay unused

adjective

completely unusedlargely unusedpartially unusedtotally unusedvirtually unused

noun

unused spaceunused capacityunused resourcesunused materialsunused equipment

adverb

still unusedoften unusedrarely unusednever unused

preposition

unused forunused byunused inunused during

phrase

unused to somethingunused portionunused creditunused inventoryunused potential

常见错误

❌ 错误:This room is unused for a long time.
✓ 正确:This room has been unused for a long time.

错误在于使用了'is'表示状态,但'for a long time'强调时间段,应用现在完成时'has been'来描述持续未使用的状态。

❌ 错误:He is unused to the cold weather.
✓ 正确:He is unused to cold weather.

错误在于添加了定冠词'the',但'cold weather'作为泛指概念时通常不用冠词,应直接说'unused to cold weather'。

近义词辨析

unused

强调物品当前或过去未被使用,可能闲置或废弃,中性词。

The unused tools were stored in the garage.

idle

更侧重于暂时闲置或未运行的状态,常用于机器或资源,可能隐含效率低下。

The factory machines were idle during the holiday.

vacant

特指空间或职位未被占用,如房间或座位空着,不强调是否被使用过。

There is a vacant seat in the front row.