科學(xué)家已證實膽固醇含量與心臟病之間有關(guān)聯(lián)。Scientists have established a connection between cholesterol levels and heart disease.警方懷疑那兩樁兇殺案可能有關(guān)聯(lián)。Police suspect there may be a link between the two murders.物理學(xué)與天文學(xué)是互有關(guān)聯(lián)的科學(xué).Physics and astronomy ...