难度的英文：
trouble
problem
Such fluctuation complicates and delay loading and discharging and increases the cost of the quay construction.
水位的变化加大了装卸的难度，降低了装卸的速度，增加了建港的成本。
The easiest elections to audit are the least technically sophisticated: voting with paper ballots
最容易监控的投票方式是技术难度
Hers is the kind of voice that excels at vocal gymnastics.
她的嗓音擅长演绎有难度的歌曲。
I fear that I underrated the difficulty of the task.
我恐怕低估了这任务的难度。
It's a stiffer challenge, but with double stake If you win.
游戏有它的难度，但是赢了的话就有两倍的奖金。
This difficult operation will exact all the doctor's skill.
这个难度大的手术要求医生全部技能。
Guys can intercept anyone they want without any difficulty.
任何人都可以毫无难度地窃听任何人的信息。
But in springboard competitions, the degree of difficulty becomes higher.
而在跳板比赛时，难度系数就变得比较高了。
Having a tidy desk can seem impossible if you have a busy, demanding job.
如果工作忙、难度大，要想保持桌面整洁似乎不太可能。
n. 烦恼；忧虑；困难；麻烦；打扰；纷争，动乱，骚乱；疾病；不适；故障
v. （使）烦恼；费心；麻烦；（病痛）折磨
Never trouble trouble till trouble trouble you.
麻烦不找你,就别自找麻烦。
you are a trouble maker!
你真是个捣蛋鬼！
This is the trouble with a boyfriend.
这就是有男朋友的麻烦。
She is in trouble.
她怀孕了。
Never (or Don't) trouble trouble till trouble troulbes you
切莫自寻麻烦
n. 难题，困难；逻辑题
It was a complex problem.
这是一个复杂的问题。
Is the problem that easy?
问题有那么简单吗?
This is a prime problem.
这是一个有关质数的问题。
These are the resolved problems.
这些是已经解决的问题。
The housing problem is bound up with the problem of gale controls.
住屋问题涉及租金控制问题。