(每日一词）coil

Coil  /kɔɪl/ n. （绳索、头发或电线的）卷，圈，盘;子宫节育环; （电）线圈 v. 盘绕，卷成卷

meaning 1: a length of rope, hair, or wire, arranged into a series of circles, one above the other

meaning 2: an UID (= a medical device to stop a woman becoming pregnant) 

meaning 3: a twisted length of wire through which an electric current travels 

meaning 4: to arrange something in a coil 

对比：coil—soil (c 圈）

e.g. The snake coiled itself tightly around the deer. 蛇紧紧地把鹿缠绕住。