enter upon . enter on . begin（an age，a career，a term of office，）开始（一个时代、生涯、新职务等）

Our country has entered，on a new period．我们国家已进入一个新时期。

After the splendid wedding party，the new couple entered on a new stage of their life．在隆重而壮观的婚礼以后，这对新婚夫妇开始进入了生活的新阶段。

He felt proud when he entered on the duties of his new appointment．当他开始担任新职务时，他感到很自豪。

enter upon . enter on . begin to consider；begin to deal with 开始考虑；开始研讨

Let's enter upon the question．我们开始讨论这个问题吧。

Once we enter on a question，we should not easily give it up．一旦我们研究某个问题，就不要轻易放过它。

enter upon . enter on . take possession of 得到；占有

She entered upon a large property．她获得了一大笔财产。

enter up . record；write down 登记；写下

The manager told the accountant to enter up the sales for the past month．经理要会计把上个月的销售登记入账。

It is very important that every sale of a dangerous poison should be entered up at the time of sale．每卖出一件危险的毒品都必须在卖时登记下来，这很重要。

Would you please enter up your name and address in the register？请在这本登记簿上登记你的名字和地址，好吗？

entitle to . give somebody the right to  .使…有权；使…有资格

The ticket entitles you to a free seat at the concert.用这张票你可以免费听一场乐会。

What she did was entitled to high praise．她所做的事情值得高度赞扬。

University students in our country are entitled to free medical care．我国的大学生享受公费医疗。

All the company's employees are entitled to an annual paid leave of from twenty-four to thirty days．这个公司的所有雇员每年有资格享受二十四到三十天的休假。

You are not entitled to use our school library．你无权使用我校的图书馆。

entrust to . give the charge of something to somebody 委托某事给某人

We cannot entrust such a task to a person we don't know.我们不能把这样一项任务交给我们不了解的人。

entrust with . trust with；give somebody the charge of something 托某人做某事

She entrusted me with mailing this letter．她委托我寄发这封信。

envious of . full of envy；showing or expressing envy 羡慕或妒忌的；表示羡慕或妒忌

John is envious of Tom's success．约翰对汤姆的成功非常羡慕。

I am never envious of others for their wealth．我从不羡慕别人的富有。

equal to . the same in size，number，等于；相等

Twice two is equal to four．二 乘 二等于四。

equal to . able to bear 胜任

He is equal to anything．他事事都能胜任。

Are you equal to the occasion？你能应付那个局面吗？

I'm not equal to the position．我不能胜任这个职位。

equip with . provide…with给…装备

We should equip our children with a good education.我们应当让孩子们受到良好的教育。

essential to . necessary to为…不可缺少的

Water is essential to the growth of crops．水是庄稼生长所不可缺少的。

Hard work and perseverance are essential to success.努力工作和持之以恒是成功所不可少的。

even if.even though .  although 即使…也

I won't mind even if he doesn't come．即使他不来，我也不介意。

I won't lose heart even if I don't succeed．即使是失败，我也不灰心。

even out . make（a surface，） even or smooth使（表面等）平坦或光滑

The workers are busy evening out the surface of the road．工人们正忙着平整路面。

When the building of the bridge was finished，the workers began evening out the ground of the construction site．当桥梁建造完工时，工人们开始平整建筑工地的路面。

even out . stabilize 稳定

It is expected that prices will even out next year．预料明年的物价会稳定。

even out . equalize；make regular or equitable使平均；使均衡

I'll pay this time and you pay next time；it'll even out in the long run．这次我付，下次你付，最后还是平摊了。

even up . equalize；make（accounts，）balanced；make equal 平均；使（帐目等）平衡；使…成为平局

According to the contract，the two parties should even up accounts with each other．根据合同，双方的收支账目应该相等。

If you give him an apple you must give his brother one to even things up．你要是给他一个苹果，就也得给他弟弟一个，这样才公平。

The two teams evened up their score．这两队打成平局。

ever so . very；vastly；immensely非常；大大地（加强语气）

He was ever so tired．那时他太累了。

I like it ever so much．我非常喜欢它。

She's got ever so many books．她有好多书。

every now and then . from time to time； occasionally 不时；时常

Every now and then I like to walk along the beach and forget my problems．我常常喜欢沿着海滩散步，忘记我的问题。

I meet him every now and then on the street．我时常在街上碰见他。