n.a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys)
同义词：trawltrawl linespillertrotline
英汉双解大词典
setline/ˈsɛtˌlaɪn/
1.
N（名词）
any of various types of fishing line that consist of a long line suspended across a stream, between buoys, etc, and having shorter hooked and baited lines attached 有一排钩子的长钓鱼线 → see also trotline