To refuse to answer a question, often in legal contexts, to avoid self-incrimination.
拒绝回答问题，通常在法律背景下，为了避免自我归罪。 (ju jue hui da wen ti tong chang zai fa lv bei jing xia wei le bi mian zi wo gui zui)
"When asked about the financial discrepancies, he chose to plead the fifth."
"当被问及财务差异时，他选择了援引第五修正案。" (dang bei wen ji cai wu cha yi shi ta xuan ze le yuan yin di wu xiu zheng an)
