1.begin to 开始

The horns of some deer begin to shed.
有些鹿开始换角了。

But, when you are ready, begin to let people back into your life.
但是，当你准备好了，就开始让人们重新进入你的生命。

2.account for 对…负有责任；对…做出解释

Jack could not account for his foolish mistake.
杰克无法解释自己的愚蠢错误。

He has to account to the chairman for all the money he spends.
他必须向主席说明他所花掉所有钱的去向。

3.link to 把…和…连接；把…和…联系起来

How do you link to it?
你怎样连接到它？

They link to the page I found them on.
它们能连接到我所找到的那些网页。

4.trace back to 追溯到

His family can trace its history back to the Qing Dynasty.
他的家族史可追溯到清朝。

The rumour was traced back to Tom.
这个谣言追究到汤姆身上。