runnel
noun [ C ] uk/ˈrʌn.əl/ us/ˈrʌn.əl/
溪，小河
a small stream
The broken path that led up the mountainside had become a runnel. 通向山腰的那条破碎的小路变成了一条小溪。
The water is crystal clear, the pools and runnels alive with the shadows of fish. 水面清澈透明，池塘和小溪里随处可见鱼影摇曳。
水流;流淌的液体
an amount of liquid that is flowing
A runnel of sweat began to trickle down his forehead. 一道道汗水开始从他的额头流下。
His tanned skin glistened with runnels of water. 他黝黑的皮肤上闪着水珠。
UK沟，水沟
a channel (= passage) that water flows along
He was bending over the stone runnel where it came into the garden from outside. 他正俯身看着从外面通向花园的石质水槽。
They attack in the alleys and runnels of the city, not in the open countryside. 他们在城里的小巷和水道发动攻击，而不是开阔的乡村地区。