John's income has gone up one notch this month.

约翰的本月收入上升了一级。

The carpenter notched the wood.

木匠在木头上开了个槽。

No one can understand why the killer left a notch at the scene.

没人能懂为什么凶手会在现场留下一个V形切口。

The stick has two notches, one at each end.

这根木棍两端各有一个V形切口

They have a notch in their belt.

他们的皮带上有个切口。

They are recognizable by their coloring (mostly brown with yellow spots), large pointed teeth, and the notch in their lower lip.

可以从它们的颜色（大多是带有黄色斑点的棕色）、大尖牙和下唇的凹陷处辨认出来。

She tightened her belt an extra notch.

她将腰带又束紧了一格。

The quality of the food here has dropped a notch recently.

这里的饭菜质量最近下降了一级。

In this country the good players are pulled down a notch or two.

在这个国家优秀运动员们被降了一到两级。