门槛的英文：
doorsill
sill
threshold

参考例句：

I stumped my toe against the doorsill.
我的脚趾碰到门槛上。

Ambient blue LED lighting; overhead, console and footwells
LED蓝色装饰灯,头顶/中控台/门槛

He stubbed his toe against the doorsill.
他的脚趾踢到了门槛上。

He paused to give Alexandra his hand as she stepped over the stile
他停了下来，伸手帮亚历山德拉越过门槛。

She was transfixed upon the threshold by a spectacle which held her there.
她被一个场面慑住僵在门槛上不会动了。

He paused upon the threshold to survey the room.
他在门槛前停了停把室内打量了一下。

Eventually he was happy that the sills and doors were a reasonably good fit.
门槛和门扇算是贴合良好，他终于开心了。

The old wooden floor creaked as I stepped across the threshold of this aging house.
当我举步跨过这座老房子的门槛时,旧木地板发出"嘎嘎"的响声。

After upholding to scold the folded wife, a second-hand husband moulds the threshold in shorthand on the highland.
在赞成责骂被折叠的妻子之后，二手丈夫在高地以速记法铸成了一个门槛。

With his wonted, collected and stately mien, he crossed the unhallowed threshold
他摆出平时那种泰然自若的庄严态度，跨过那个污浊的门槛。

doorsill是什么意思：
n. 门槛
threshold是什么意思：
n. 极限；临界值；门槛，入口；开始

The threshold of a physiological or psychological response.
阈限生理或生理反映的下限

The threshold varies depending on your system.
该阈值因系统而异。

We are on the threshold of a new era in astronomy.
我们很快就将迎来天文学的新纪元。

To cross the threshold and leave ... all these mortal dregs behind.
穿越这开端。。。并将这临死的痛苦抛远。

The body of a neuron. Acts approximately as a linear threshold element
神经元的本体,其作用近似于一种线性阀值器件。