A threaded electrical fitting to connect a fixture to an outlet box.
螺纹接口用于接合电气装置和引出盒的螺纹接口
His black hair was threaded with silver.
他的黑发中夹杂着银发。
The detective threaded his way through the crowds, always keeping the suspect in view.
侦探从人群中挤过去,紧紧地盯着那个可疑的人。