源头: headstream; head; fountainhead; source 短语和例子一条河的源头 the source of a river; 探险者在中非找到了尼罗河的几处源头。 explorers traced the nile river to its several headstreams in central africa
源泉: fountain; wellhead; mine; source; fountainhead 短语和例子丰富的知识源泉 a rich source of information; 地球与太阳是生命的两大源泉。 the earth and the sun are two great sources of life. 大脑是思想的根本源泉。 the brain is the u
感染源头: source of infectionsource of the diseasesourceofinfection
