A sharp decline in something that probably cannot be stopped (like a parachutist falling from an airplane before his parachute opens)
EXAMPLE: The local fishing industry was in free fall after the oil spill from the ship disaster contaminated the coast.
1. 圆桌会议（名词） 2. 圆桌会议式的（形容词）
1. (noun) A meeting of experts who express their individual opinions on a particular subject 2. (adjective) Describing a discussion of experts at which everyone speaks as an equal
EXAMPLE: The energy industry conference included a roundtable discussion at which the presidents of five regional petrochemical companies spoke.