come across
1(偶然地)碰到；想到：
例句：
Perhaps I shall come across him in France.
也许我会在法国遇见他.
2发现；出现：
例句：
I came across this book in an old bookstore in London.
我在伦敦一家旧书店里发现了这本书.
3讲得清楚明白,可理解；有说服力：
例句：
Your speech didn't come across; nobody understood your opinion.
你的演说讲得不明不白,没有人能听懂你的意思.
4[口语]看上去似乎是,给人…印象：
例句：
He came across to me as being quite a nice persom.
他在我的印象中是一个挺好的人.
5[美国俚语](不情愿地)交出；照付；照办：
例句：
The robber took out his pistol and pointed at her head with it,and she came across with all the money she had in her pocket.
土匪掏出手枪用枪对着她的头部,于是她把口袋里所有的钱全部交了出来.
6表现自己：
例句：
All the candidates came across badly on TV.
所有的候选人在电视上表演得都相当拙劣.
还真没有贯穿的意思 贯穿是cross 或者go across 吧
come across 大多是偶遇的意思
