1.
Don't mess around with sharp knives!
不要摆弄刀口锋利的刀！
2.
He nicked the razor.
他弄缺了剃刀刀口。
3.
a fulcrum bearing
支点承座, 刀口承
4.
'On the top of the gallows is fixed the knife, blade upwards, with its point in the air.
“绞架顶上捆着他那把刀，刀口向上，刀尖在空中。
5.
His stiff beard turns the edge of the razor.
他的硬胡子把剃须刀的刀口给弄钝了。
6.
He bought a razor with a keen edge.
他买了一把刀口锋利的剃刀。
7.
Having an edge or edges of a specified type
有某类刀口、边缘等的
8.
He turned the edge of the knife.
他使刀口卷刃[变钝]。
9.
blade-fork contact
刀口音叉式触点簧片
10.
It is difficult to steel the razor.
把剃刀口钢化不太容易。
11.
Ask about incisions. Where will they be located and how bad can the scarring be?
关于刀口。刀口开在哪里？疤痕将会是什么样子的？
12.
Digital Knife-edge Testing Technology on Spherical Mirror of Large Aperture;
大口径球面数字刀口检测技术的研究
13.
two edge of knives match the circumstance comparision more,an edgy first grade of observation matches the rate as 100% more.
两组刀口愈合情况比较,观察组刀口甲级愈合率为100%。
14.
Fix [Unfix] bayonets!
（口令）上[下]刺刀！
15.
Unfix bayonet!
【军】[口令]下刺刀!
16.
an ugly wound, gash,scar, etc
丑陋的伤口、 刀伤、 伤痕等
17.
That knife has a sharp edge.
那把刀的刃口锋利。
18.
The blade is chipped in a few places.
刀锋有几个地方缺口。