cut in
(1) 插入，插话。
如：Don’t cut in when others are talking.
别人说话时别插话。
He kept cutting in on our conversation.
我们谈话时他老是插话。
注：cut in on sth 有时可说成
cut into sth, 如上面第二句也可说成：
He kept cutting into our conversation.
(2) 插队，超车
如：He cut in at the head of the line.
他在队伍的前面插队。
The car overtook me and then cut in on me.
那辆小车超了我的车，然后插在我前面。
cut down 砍倒，降低，如cut down the trees砍树.
cut down the cost 降低成本.
cut down on 减少,削减。
如cut down on sugar to lose weight.少吃糖以减轻体重。能用cut down on 的地方比较少，且抽象点。
cut down 用法更广泛。
cut into 削减； 侵犯； 打断； 减轻。
She cut into our conversation several times. = 她几次打断我们的谈话。
cut out 删除； 删掉； 割去； 停止。
I cut out the tags so he couldn’t return it. = 我把吊牌给剪了，这样他就没法退货了。
cut: 1. 切, 剪, 割, 削; （从某物上）切下; 将（某物）切开（或分割）
2. 切；割；割破；划破
例如：I cut you a piece of meat.
我给你切块肉
cut up:
1. (布料等)裁得出
2. 切碎, 切割开
3. 砍伤, 使…受伤; 毁坏
4. 恶作剧, 胡闹
5. 对…吹毛求疵, 抨击
6. 使悲痛, 使伤心
例如：
He cut up the meat.
他把肉切碎。
The floor was badly cut up.
地板已严重破损。
Cut up the vegetable very fine.
把蔬菜切得很细。
He was cut up in yesterday’s battle.
他在昨天的战斗中丧生。
CUT只是切,比如把某个东西切一下.
CUT PU是把某的东西切碎
cut n. 伤口；切口；削减；（服装等的）式样；[体育]削球；切入
vt. 切割；削减；缩短；刺痛
vi. 切割；相交；切牌；停拍；不出席
adj. 割下的；雕过的；缩减的
cut out
1. 切去，割去，剪去；删去：
The doctor cut out his tonsils.
医生切除了他的扁桃腺。
You should cut out the unimportant details.
你应当删除掉这些不重要的细节。
2. 裁剪；剪出：
The shoemaker carefully examined the leather before starting to cut out the uppers.
鞋匠仔细察看了这张皮子以后才开始裁剪鞋帮儿。
3. [口语]击败；取代；排挤：
Mary was going to marry Charles but Jim cut him out.
玛丽本来打算和查尔斯结婚，但是吉姆把查尔斯排挤掉了。
4. [口语]戒除，停止服用：
I have decided to cut out *** oking and drinking.
我已决定戒菸戒酒。
5. 停止；中断；关掉：
Let's cut out the talking and get back to work!
咱们别聊天了，回去干活吧!
6. (突然地、秘密地或永久地)离开：
A lot of kids cut out before the class was over.
还没有放学，很多孩子就悄悄离校了。
cut out
n.
1. a switch that interrupts an electric circuit in the event of an overload
2. a photograph from which the background has been cut away
3. a part that is cut out or is intended to be cut out
v.
1. delete or remove
2. form and create by cutting out
3. cut off and s
4. strike or cancel by or as if by rubbing or crossing out
5. intercept (a player)
6. cease operating
adj.
having been cut out
cut up 切碎
cut 切
ut up:切碎
eg:Halve the tomatoes,then cut them up coarsely.
把西红柿切成两半,然后再把它们粗略切一下.
cut into
1.切入,割入,砍入：
He cut his name into the bark with his knife.
他用小刀把自己的名字刻在树皮上.
2.切成,割成；锯成：
to cut timbre into logs
将原木锯成段木
3.插嘴,打断：
She cut into our conversation several times.
她几次打断我们的谈话.
4.减少；从…中占去时间：
The rise in wages cut into the profits of the pany.
工资的增长降低了公司的利润.
cut up
[英][kʌt ʌp][美][kʌt ʌp]
切碎; 砍伤; 恶作剧; 使悲痛;
Whenever a pany can cut costs and keep up quality, it 's a positive. “
只要公司能够降低成本，并保证质量，这样的决策就是积极的。”
cut into
[英][kʌt ˈɪntuː][美][kʌt ˈɪntu]
切入; 打断[扰]; 把某物切成（几块）; 把…刻成;
Soon a driver in another GM test car approached from the left and cut in front of my car, into my lane.
很快，另一辆试验用车从左侧逼近，并切入到我们的前方。
cut down砍倒，削减，压缩. cut off切断
cut in half 和cut into halves 都是切成两半,前者强调状态是2半,后者强调动作切成2半