1.back for 支持

He ran back for an umbrella.
他跑回去拿雨傘。

And I yelled back for him to be sure and listen to the tape.
我只是喊回去告訴他我確實想死，還囑咐他一定要聽我的故事。
2.as well 也；同樣地；還不如

We might as well bunk down in this hotel.
我們還是在這家旅館找床鋪睡覺為好。

If he winks at you,you may wink back as well.
如果他向你使眼色的話，你也可以使眼色以示回答。

3.prime minister 首相，總理

Did you listen in to the Prime Minister yesterday evening?
你昨晚收聽首相的廣播講話了嗎?

He met with the Prime Minister of Japan for an hour and a half.
他和日本首相會晤了一個半小時。

4.encourage to 鼓勵

I encourage to join the list and contribute your thoughts to the project.
我鼓勵您加入這個列表，并提供您對這個項目的想法。

In short, no matter the personal cost, black woman are encourage to marry "down" before they marry "out.
一句話，不管個人做出什么犧牲，黑人女性在“出嫁”之前，都被鼓勵先“下嫁”。