notches
n. 换级触点；槽口；切痕；凹位（notch 的复数）
v. 刻凹痕；用刻痕计算（notch 的第三人称单数）
例句
It is a myth that gunslingers in the American west cut notches in the handle of their pistol for each man they shot.
有种传说，美国西部的枪手们每杀死一个人就在他们的枪柄上刻下一个V形记号。
《柯林斯英汉双解大词典》
Duarte helped take al's visuals up several notches.
Duarte帮助艾尔将视觉效果提升了几个等级。
The agency also cut Portugal's debt rating by two notches.
该机构同时将葡萄牙的债务评级也下降了两档。
