万难；千难万难；难得要命；难上加难

极其困难的

extreme difficulty───极端困难

exceedingly difficult───极其困难

notoriously difficult───出了名的难

especially difficult───特别困难

increasingly difficult───越来越困难

doubly difficult───难上加难

experience difficulty───体验困难

When small fish face an extremely difficult problem,they deal with it by forming a school.───当小鱼面临极其困难的问题时，他们会立刻形成鱼群。

It is extremely difficult to judge how floor prices are to be set.───很难判断应如何制定最低价格.

Improperly implemented , dials can be extremely difficult to manipulate.───如果设计不当, 刻度盘将会非常难于操作.

The differentiation between functional disturbances and physical lesions is often extremely difficult.───机能紊乱与器质性损害之间的区别常是非常困难的.

Though it may be possible to measure the value of material goods in terms of money, it is extremely difficult to estimate the true value of the services which people perform for us.───虽然用金钱来衡量物质产品的价值是可能的;但要估计人们为我们提供的服务的真正价值却极为困难.

Determining the oblateness is extremely difficult.───测量扁率是极为困难的.

This mathematics problem is extremely difficult.───这道数学题难度很大.

Frequent hot conversion, stock is extremely difficult to grasp the emerging opportunities.───热点频繁转换, 个股机会层出不穷却极难把握.

It's true that your father will find it extremely difficult to get out of the habit of smoking, but he should try his best for health's sake.───确实，要你父亲改掉吸烟的习惯很难，但是为了健康，他应该尽力戒除。

This failure mode would have been extremely difficult to detect with any other diagnostic technique.───这种失效模式用其他任何诊断技术来检测都将是极其困难的.

still extremely difficult to get tenure.───要取得终身职位仍然极其困难。

She found it extremely difficult to get a job.───她发觉找工作极其困难。

It is extremely difficult to reproduce this type of contact.───这种接触方式极难重现.

Otherwise, gear shifting would be extremely difficult if not impossible.───不然, 换档即使不是完全不可能,也会是十分困难的.

As important as selection of managers is, it is an extremely difficult task.───选择管理者是重要的, 但是同时也是极其困难的事情.

All this makes the interstellar dust particles extremely difficult to locate.───所有这些使得定位星际尘埃变得极为困难.

The old man was extremely difficult to get along with.───这个老人极难相与.

Politically and economically this is an extremely difficult question.

It's still extremely difficult to get tenure.

It can be extremely difficult to wean children off junk food.

She found it extremely difficult to get a job.

Earthquakes are extremely difficult to predict.

Quitting my old job was an extremely difficult decision.

It was proving extremely difficult to establish the truth.

Both my children have brought me through extremely difficult times since my husband died.

The fungus is extremely difficult to get rid of.