1.
be difficult of approach
(地方)难达到的，(人)难于接近的
2.
Pedagogic classroom sets an example the result that explains very inaccessible synchronism, use multimedia to be able to be achieved.
教师课堂示范讲解很难达到同步的效果，利用多媒体可以达到。
3.
Rome is not difficult to get at
罗马是不难到达的。
4.
as by falling into inaccessible caves,
如掉进难以到达的洞穴，
5.
to an inexpressible degree.
达到难以形容的程度。
6.
(informal) difficult to reach or attain.
（非正式）难以达到或获得。
7.
It is difficult for letters to reach the camp.
信件到达营地很困难。
8.
Belinda looked embarrassed.
比琳达感到难为情。
9.
To attain with effort or despite difficulty.
实现经努力或克服困难而达到，得到
10.
We'll have our work cut out to get there before nightfall.
要在黄昏前到达那里我们是有困难的。
11.
They'll be hard put to get here before dawn.
他们要在天亮之前到达这里有困难。
12.
Stupidity was as necessary as intelligence, and as difficult to attain.
愚蠢和聪明同样必要，也同样难以达到。
13.
"Now comes the hard part, "Brenda noted.
“现在到了艰难的时刻，”布伦达指出。
14.
The questions get harder, the higher you go to the level.
你到达的级别越高，问题就变得越难。
15.
Now I'm not sure who'll get there first.
现在我很难断定谁先到达那里。
16.
Did you design this result?
难道企图达到这种结果吗？
17.
Judging from experience, a proper balance is not easy to achieve.
经验表明，要达到适度的平衡是很难的。
18.
To overcome difficulties and attain a desired goal or end.
克服困难并达到既定目标或结果