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ascertain解释

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ascertain的意思是：vt.确定；查明；探知。ascertain【近义词】learn学会。ascertain的读音是英[??s?'te?n]；美[??s?r'te?n]。

v.(动词)

二、双解释义

v.(动词)

三、英英释义

Verb:

establish after a calculation, investigation, experiment, survey, or study;
"find the product of two numbers"
"The physicist who found the elusive particle won the Nobel Prize"
be careful or certain to do something; make certain of something;
"He verified that the valves were closed"
"See that the curtains are closed"
"control the quality of the product"
find out, learn, or determine with certainty, usually by making an inquiry or other effort;
"I want to see whether she speaks French"
"See whether it works"
"find out if he speaks Russian"
"Check whether the train leaves on time"
learn or discover with certainty

四、例句

I ascertain that he was murdered.

我确定他是被谋杀的。

I ascertained the disease to be diphtheria.

我确定该病为白喉。

The detective was trying to ascertain exactly who was at the party.

这个侦探试图查明都有谁参加了聚会。

I'm going to ascertain the truth.

我要查明。

It's difficult to ascertain the coal deposits.

煤储量很难探明。

My purpose is to ascertain whether you are interested or not.

我的目的是要弄清你是否感兴趣。

五、常见句型

用作动词(v.)

用作及物动词S+～+ n./pron.

I'm going to ascertain the truth.
我要查明。
The detective tried to ascertain the facts about the robbery.
侦探试图查明这起抢劫案的。
I am going to ascertain the truth of his statement.
我将弄清他的话是否真实。
The insurance adjustor had to ascertain the exact value of the missing jewels.
这个保险金估算人必须核实这些丢失的珠宝的价值。

The power needs of the ship must be ascertained.
这艘船所需的动力必须弄清。
The previously unidentified objects have now been definitely ascertained as being satellites.
原来所说的不明飞行物现在已证实是卫星。

S+～+that-clause

I ascertained that he was dead.
我确定他死了。
He ascertained that the news was true.
他确定消息属实。
He had ascertained that his son-in-law was among the living prisoners.
他已查明他女婿曾在活着的囚犯之中。

S+～+wh-clause

I want to ascertain what time the train arrives, so that I may get to the station in time to meet my friend.
我查清火车到达的时间,以便我准时到火车站去接我的朋友。
It is difficult to ascertain what the people really want.
问题在于一定要弄清人们究竟需要什么。
Can you ascertain who the owner is?
你能查明物主是谁吗?
We could not ascertain how it happened.
我们没能弄清它是怎样发生的。

六、词汇搭配

用作动词 (v.)

～+副词

～+介词

七、词语用法

v.(动词)

ascertain的相关近义词