1.an initial version of 初始版本

An initial version of the plan recommended that students draft letters to themselves discussing "what they can do to help the president. "

最初的计划是建议学生自己给自己写信，讨论“他们能帮总统做点什么d!*l%Nf&RN*Rn。”

2.feed in 输入；进给；提供

A very common use is to feed in passwords, which typically should be unique to every deployment.

一种极常见的做法就是提供密码，而每种配置的密码应该都是不一样的wWCwz|3Xq+P)[。

3.keep up 保持；继续；坚持

You have clearly set goals for yourself and it seems to be a constant struggle for you to keep up with them.

你给自己制定了清晰的目标，只是对你来说，你总是很难把目标坚持下去XoG]6tc[|sWN。

4.call in sth. 致电说明

It’s a hot topic, and people have been calling in it all morning.

这是个热点话题，一早上一直有人打电话聊这事儿Klj)R|r5vo89O1YD[+he。