noun🔗Share井口，泉源. The place where a spring breaks out of the ground; the source of water for a stream or well."The hikers followed the stream uphill until they reached the wellhead, a small pool of clear water bubbling from the earth. "徒步者们沿着小溪向上走，直到他们到达了泉源，那是一个从地里冒出来清澈小水池的井口。geologynatureenvironmentChat with AIVocabulary GamePractice Reading
noun🔗Share源头，发源地。 The source of something; a fountainhead."The library served as the wellhead of knowledge for the entire community. "这座图书馆是整个社区的知识源泉。geologynatureenvironmentChat with AIVocabulary GamePractice Reading
noun🔗Share井口，油井井口。 The surface structure of an oil well etc."The workers tightened the valve on the wellhead to prevent any leaks. "工人们拧紧了油井井口上的阀门，以防止泄漏。technicalindustrygeologyenergystructureChat with AIVocabulary GamePractice Reading
