点击下方单词,选择对的这个单词
1. serving to support or corroborate
e.g. collateral evidence
Synonym: collateralconfirmativeconfirmingconfirmatorycorroborativecorroboratorysubstantiatingsubstantiativevalidatingvalidatoryverificatory
多通过句子记忆单词,而不是单独死记硬背。