threshold

/ˈθreʃ.hoʊld/

名词

阈，界限；起点
He earns £400 a month, well below the threshold for paying tax.
他每月赚400英镑，远低于需要支付税款的门槛。
门槛
She stepped over the threshold and entered the cozy room.
她跨过门槛，走进了温馨的房间。