针锋相对針鋒相對HSK 7–9 1.to oppose each other with equal harshness (idiom); tit for tat2.measure for measure
相对而言相對而言HSK 7–9 1.relatively speaking2.comparatively speaking
to meet a possible marriage partner
(of two people) to look into each other's eyes
relative address (computing)
relatively; comparatively
广义相对论廣義相對論 1.general relativity2.Einstein's theory of gravity
非相对论性非相對論性 non-relativistic (physics)