1
on the threshold of sth
表示即将进入新状态或新阶段。
We are on the threshold of a new era.
我们正处于一个新时代的起点。
开端，起点
先理解核心含义，再看它在真实句子里的用法。
开端，起点
the starting point for a new state or experience
We are on the threshold of a new era.
我们正处于一个新时代的起点。
新状态或体验的起点
the starting point for a new state or experience
最小可检测的感觉
the smallest detectable sensation
进入或离开房间或建筑物的入口；门可以关闭的空间
the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close
She stood on the threshold, hesitant to enter the dark room.
她站在门槛上，犹豫着不敢进入黑暗的房间。
AI contextual example
His salary is above the tax threshold, so he has to file a return.
他的工资超过了纳税起征点，因此他必须申报纳税。
AI contextual example
We are on the threshold of a new era in renewable energy.
我们正处于可再生能源新时代的开端。
AI contextual example
on the threshold of manhood
WordNet
he stuck his head in the doorway
WordNet
表示即将进入新状态或新阶段。
We are on the threshold of a new era.
我们正处于一个新时代的起点。
常用在科学或技术语境中，表示界限值。
The threshold for pain varies from person to person.
疼痛阈值因人而异。
可字面指跨过门槛，也比喻进入新领域。
She crossed the threshold of the old house.
她跨过了老房子的门槛。
Not this
He stood on threshold.
Use this
He stood on the threshold.
在英语中，可数名词单数前通常需要冠词，如“threshold”。中文作“门槛”时可能忽略冠词，但英语必须使用“the”或“a”。
Not this
We are in the threshold of a new era.
Use this
We are on the threshold of a new era.
表示“在…的开端”时，固定搭配介词为“on”或“at”，而不用“in”。中文介词“在”可能泛化为“in”，导致错误。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
跨过门槛；进入新阶段
The company has crossed a threshold in its expansion.
该公司在其扩张中跨过了一个门槛。
达到阈值；到达临界点
The temperature reached a threshold where the alarm sounded.
温度达到了阈值，警报响起。
高于阈值
If your income is above the threshold, you must pay tax.
如果你的收入高于阈值，你必须纳税。
低于阈值
The noise level is below the threshold of hearing.
噪音水平低于听觉阈值。
痛阈；疼痛阈值
Everyone has a different pain threshold.
每个人的痛阈不同。
阈值水平；临界水平
The threshold level for radiation exposure is strictly monitored.
辐射暴露的阈值水平受到严格监控。
Use threshold naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
语域：neutral 常见场景：general、technical 通常用于泛指起点或临界点，在专业领域（如心理学、工程学）中也很常见。
可数名词，常与介词 of 或 to 搭配，表示起点或界限。
Words like 'hold', 'cold', and 'bold' share the '-old' ending and rhyme with 'threshold' (/θrɛʃoʊld/).
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT.