collateral/kəˈlæt̬.ɚ.əl/形容词附带的,次要的;(亲戚)旁系的,非直系的collateral senses of a word词语的次要意义/kəˈlæt̬.ɚ.əl/名词(血管或神经)侧支/kəˈlæt̬.ɚ.əl/名词担保品,抵押品She used/put up her house as collateral for a loan.她用自己的房屋作抵押来贷款。想跟读,去练习