threshold /ˈθrɛʃˌhoʊld/ noun plural thresholds
plural thresholds
Learner's definition of THRESHOLD
[count]
1
: a piece of wood, metal, or stone that forms the bottom of a door and that you walk over as you enter a room or building门槛 -
He stepped across the threshold.他迈过门槛。
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When they were married he carried her over the threshold. [=he picked her up and carried her into their home when they entered it together for the first time]他们结婚时，他把她抱进家门。
2
: the point or level at which something begins or changes临界点；起始点 -
If your income rises above a certain threshold, your tax rate also rises.如果收入超过某个定值，税率也会增加。
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sounds that are above/below the threshold of hearing [=sounds that are too high/low to be heard]高/低于听觉临界点的声音
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I have a low threshold for boredom. [=I get bored easily]我很容易厌烦。
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He has a high pain threshold. [=he does not feel pain as easily as other people]他的痛阈很高。
on/at the threshold
: at the beginning of something or very close to something (such as a new condition, an important discovery, etc.)在…的开始；接近 —
usually + of