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煤储量很难探明.用英语怎么说？

煤储量很难探明.

It's difficult to ascertain the coal deposits.

相关词汇
difficult to ascertain the coal deposits

difficult

adj. 困难的，难做的，难解的，不易相处的；
例句
It is a difficult job and they should be paid accordingly...
这是份棘手的工作，他们应得到相应的报酬。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；
例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

ascertain

vt. 弄清，确定，查明；
例句
Through doing this, the teacher will be able to ascertain the extent to which the child understands what he is reading...
这样一来，老师就能确定孩子们对他所读的内容理解多少了。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

coal

n. 煤，煤块，煤堆，木炭；vi. 上煤，加煤；vt. 给…加煤，把…烧成炭；
例句
The power stations burn coal from the Ruhr region...
发电站烧的煤产自鲁尔地区。

deposits

n. 存放( deposit的名词复数 )，订金，寄存处，储蓄；v. 存放( deposit的第三人称单数 )，（尤指小心地或准确地）放置，付（保证金），（把硬币）放入（自动售货机）；
例句
...underground deposits of gold and diamonds.
地下金矿和金刚石矿
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
They were working frantically in the fear that an aftershock would jolt the house again.
他们拼命地干着，担心余震可能会使房子再次受到震动。
There are lots of waifs and strays living on the streets here.
这里有很多露宿街头的无家可归者.
Relations are rather strained at present.
目前关系有些紧张。
Slow leaks in the sanctifying dimension of marriage often cause marriages become flat tires.
一点点降低对婚姻的崇敬标准,常常会让婚姻变成泄气的轮胎.
He wants to create a society where Islamic principles predominate.
他想创造一个以伊斯兰教戒律为主导的社会。
The story tells of a runaway slave girl in Louisiana, circa 1850.
故事大约发生在1850年，讲的是路易斯安那州一个逃跑的年轻女奴。
He shook his head disapprovingly.
他摇了摇头,表示不赞成.
We don't have peanut oil in our family.
我们家不吃花生油.
It is quite clear that we were firing in self defence...
事实很清楚，我们开枪是出于自卫。
This is a problem which is much exercising the minds of teachers.
这是一个十分吸引教师们注意的问题。