ringer
noun /ˈrɪŋə(r)/
/ˈrɪŋər/
Idioms - (also bell-ringer)a person who rings church bells as a hobby
（教堂的）业余敲钟人 - a device that makes a ringing sound, for example on a phone
（以冒名顶替等手段）非法参赛的马（或人） - It's easy to adjust the ringer volume.
调节铃声音量很容易。
- It's easy to adjust the ringer volume.
- a horse or person that takes part in a race illegally, for example by using a false name
（以冒名顶替等手段）非法参赛的马（或人）
Idioms
be a dead ringer for somebody
- (informal) to look very like somebody
酷似，极像（某人）；（和某人）一模一样 - She's a dead ringer for a girl I used to know.
她酷似我以前认识的一个女孩。
- She's a dead ringer for a girl I used to know.