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It's difficult to ascertain the coal deposits.是什么意思？

It's difficult to ascertain the coal deposits.

煤储量很难探明.

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。
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vibrant with energy
精力充沛的
The gun barrel grated against the floor.
枪管拖在地上发出刺耳的声音。
75 per cent of the amount originally borrowed is still outstanding.
最初的借款仍有75% 未偿还。
Result: There were 8 antibiotics to be the first choice to treating nongonococcal urethritis: SPE 、 POX 、 AZI 、 MIN 、 DOX 、 JAS 、 CLA and Fleroxacin.
结果: 目前治疗非淋菌性尿道炎的首选药物有8种抗生素,有壮观霉素、罗红霉素、阿齐霉素、美满霉素、强力霉素、交沙霉素、克拉霉素、氟罗沙星.
No rose without a thorn.
没有不带刺的玫瑰。
Keep away from the doors while the train is moving.
列车运行过程中要远离车门。
George showed me to the guestroom which, he said, was rarely used.
乔治带我去了客房, 他说, 那很少有人用.
The invention discloses a heat measuring type and anemometer integrated flow velocity transducer.
本发明公开了一种测热型和风速计一体化流速传感器.
You will bring disgrace on yourself by doing this.
你这样做会给自己带来耻辱。
...household chores.
家务杂活