adj.
直达的，直通的
例句：
The only through bus to the railway station is No. 115.
唯一直达火车站的公共汽车是115号。
例句：
Is this a through carriage for Suzhou from here?
这是从这里去苏州的直达列车吗？
完成的，结束的(+with)
例句：
I'm through with you.
我跟你结束了。
例句：
He's through with their marriage.
他结束了他们的婚姻。
【英】（电话）接通的
例句：
You are through now, You can begin to speak.
您的电话接通了，你可以讲话了。
例句：
The operator finally got me through to Mr.Black's extention number.
接线员于给我接通了布莱克先生的分机号码。
adv.
直达(+to)
例句：
The train goes through to Shanghai.
这列火车直达上海。
例句：
This train goes through to Paris.
这列火车直达巴黎。
从头至尾，彻底
例句：
I am busy and do not intend to do a thorough search through my poems, nor do I intend to write many.
我很忙碌而且不打算从头至尾的去搜寻我的诗作，也不打算写太多。
例句：
He decided to carry it through.
他决定将此事彻底办一下。
（电话）接通(+to)
例句：
Have you got through?
电话接通了吗？
例句：
We'll call you when your call is ready to go through.
当您的电话接通时我们会通知您。
prep.
穿过；通过
例句：
Don't diverge from the main path, but go straight through the wood.
不要偏离大道，一直穿过树林。
例句：
Go through the door on your right and into the office.
穿过右边门到办公室去。
以，用，凭借
例句：
At the time, kindred were linked together chiefly through the band of their maternity.
那时联系亲属的纽带以母方为主。