n.门槛，门口，阈，界，起始点，开端，起点，入门

原形：threshold复数：thresholds

I am on the threshold of my career.
我的事业刚刚起步。
She fell down at the threshold of the living room.
她倒在客厅的门口。
They have set a high age threshold for the new recruits.
他们为这些新入职的人设定了一个很高的年龄门槛。
The temperature threshold for ice formation is 32 degrees Fahrenheit.
冰点的温度阈值是华氏32度。
The company has reached its revenue threshold for expansion this year.
该公司今年已达到扩张的收入门槛。
The noise level in the library must remain below the acceptable threshold.
图书馆内的噪音水平必须保持在可接受的限度以下。
The athlete's heart rate exceeded the maximum threshold during the race.
运动员在比赛中的心率超过了最大阈值。
The tax threshold for individuals in this country is $10,000.
该国个人所得税起征点是10,000美元。
The pain tolerance threshold varies greatly from person to person.
对疼痛的忍受程度因人而异。
We've crossed the threshold of profitability; our business is now profitable.
我们已经跨过了盈利的门槛，现在生意开始盈利了。
The threshold for voting in this election is 18 years old.
这次选举的投票年龄门槛是18岁。
The software has a memory usage threshold beyond which it starts to slow down.
该软件有一个内存使用阈值，超过这个阈值，它就会开始变慢。
The poverty line is often used as a threshold for social welfare programs.
贫困线通常被用作社会福利计划的门槛。