second hand

n.

中间人，助手，旧货；秒针；

Second-Hand Knowledge: An Inquiry Into Cognitive Authority
Stock Prices and the Publication of Second-Hand Information
Price discrimination via second-hand markets
Tobacco industry efforts subverting International Agency for Research on Cancer's second-hand smoke study.
Second-hand smoke is an adjuvant for T helper-2 responses in a murine model of allergy
The "Dartboard"Column: Second-Hand Information and Price Pressure
Protection From Exposure to Second-Hand Tobacco Smoke: Policy recommendations
Protection from exposure to second-hand tobacco smoke. Policy recommendations
Protection from exposure to second-hand tobacco smoke: policy recommendations.
Second Hand Cultures