confluence基本解释
n,（河流的）汇合、汇流点；（人或物的）聚集,同近
The 160-metre falls mark the dramatic confluence of the rivers Nera and Velino..这处160米的瀑布是维拉河和维里诺河壮观的汇合处的标志。
汇合英释中释nthe place where two or more rivers flow together
