赞同刘老师翻译

Keeping good company will keep you socially happy and healthy throughout your life.

主语：Keeping good company(结识好友，与好友为伴）

谓语：will keep（将会使）

宾语：you（你）

宾补：socially happy and healthy throughout your life（健康快乐地在社会上生活一辈子）

On the other hand, nothing will drag you down more than socializing with people who hold you back from your full potential.

状语：on the other hand（另一方面）

主语:nothing（没有什么）

谓语：will drag down（拖累你，降低..身份，）

宾语：you（你）

状语：more than socializing with people who hold you back from your full potential(比结识那些阻碍你潜力充分发挥的人更严重/更糟糕）

A:drag  down

(1) 降低…的身份（或社会地位）；使堕落 

She dragged him down with her.

她把他拉下了水。

There were fears he would be dragged down by the scandal.  

有人担心他会因丑闻而辱没了身份。

(2)使虚弱;使沮丧

I have had really bad bouts of flu that have really dragged me down.  

我患上了重度流感，快被拖垮了。

B: socialzie with
(1)socialize with 与...交往，与....来往

He thinks he can socialize with us. As if!  

他自认为他可以跟我们交往! 才怪!

You be wise to socialize with as many people as possible.  

与尽可能多的人交往才是明智的选择.

They are content to socialize with small circle of people.  他们满足于只和一小群人来往.

Well, you joined anyway, to socialize with the neighbors. 

嗯, 你加入无论如何, 社交与邻居.

I never allow my dogs to socialize with strange dogs.  

我从来不允许我的狗与其它狗有交往.

I love to socialize with the Olympic heroes from Atlanta. 

我喜欢与亚特兰大奥运英雄们来往.

C:hold back

(1)（使）犹豫;（使）退缩 

 The administration had several reasons for holding back.  

政府因为几个原因而犹豫不决。

 Melancholy and mistrust of men hold her back.  

忧郁的性格和对男人的不信任使她裹足不前。

(2)阻挡;阻止 

 Stagnation in home sales is holding back economic recovery.  

国内销售的停滞不前正阻碍着经济复苏。

 Jake wanted to wake up, but sleep held him back.  

杰克想要醒来，但睡意使他又沉入梦乡。

(3)储备;保留 

 Farmers apparently hold back produce in the hope that prices will rise.  

农民囤积农产品显然是希望价格能够上涨。

(4)隐瞒 

 You seem to be holding something back.  

你好像隐瞒了点什么。

(5)抑制住,忍住(眼泪、笑声等)

 She kept trying to hold back her tears.  

她一直在试图抑制住眼泪。

 He could no longer hold back convulsive laughter. 

他再也忍不住，前俯后仰地大笑起来。