Based on past experiences, it takes four to five years after economic recovery for unemployment to return to pre-crisis levels.
根据过去的经验，经济复苏后，失业率需要四到五年才能恢复到危机前的水平。
Once this was done and the silt carried down by the rivers was planted, the rewards were rich: four to five times what rain-fed earth would produce.
一旦完成了这个，河流带来的淤泥会沉积在此处，回报是丰厚的：产量是被雨水滋养的土壤的四到五倍。
Well, I've seen six apartments so far. That's six down and four to go!
好啦，到目前为止我已看了六套公寓房。看完六套还有四套要去看呢！
Her earliest memory is of singing at the age of four to wounded soldiers.
她最早的记忆是在4岁时为受伤的士兵唱歌。
Thirteen percent watch TV four to six times a week.
13%的人每周看电视四到六次。
Forty-five percent exercise four to six times a week.
45%的人每周锻炼4到6次。
It is very important for the patients to receive CPR within four to six minutes.
在四至六分钟内对患者进行心肺复苏术是非常重要的。
Used in almost all video monitors and televisions, those devices contain four to eight pounds of lead each.
几乎所有的视频显示器和电视都使用这种设备，每个设备都含有4到8磅的铅。
And based on past experiences, it takes four to five years after economic recovery for unemployment to return to pre-crisis levels.
根据过去的经验，经济复苏后，失业率需要4到5年才能恢复到危机前的水平。
The director of the library said, "We have books here for kids aged from four to ten, and books for older children, like world classics and poems.
图书馆馆长说：“我们这里有供4到10岁孩子阅读的书，也有供年纪稍大一点的孩子阅读的书，比如世界经典和诗歌。
This means that a monkey's "childhood" is also longer than a dog's. So it may take them four to six years before they are ready to begin training.
这意味着猴子的“童年”也比狗的长。因此，他们可能需要四到六年的时间才能准备好开始训练。
When crayfish are kept continuously in the dark, even for four to five months, their compound eyes continue to adjust on a daily schedule for daytime and nighttime vision.
当小龙虾持续被关在黑暗的环境中，即使是4到5个月，它们的复眼仍然可以继续按照日常生活时间，对昼夜视觉进行调节。
Not 12 to 16 hours, but four to six hours.
不能一充就是12到16小时，最好4到6小时就行。
Injectables are recommended every four to five months.
注射剂的话，建议是每4到5个月来一次。
This means piloting stints of some four to five days at a time.
这意味着每次飞行要限制在4到5天里。
Normally, they regress into four to five fused vertebrae (the coccyx).
通常情况下，它们回归为四到五块融合在一起的椎骨(尾骨)。
"The next four to 12 years will not be investor-friendly," he says.
“接下去的4 ~12年，将会对投资者不利，”他说。
These must be concise and typically no longer than four to five lines long.
以上这几段文字要简洁且有代表性，长度一般不超过4、5行。
Such a study, it says, would take at least four to five years to produce results.
它还称，这样的研究至少需要四到五年才能出成果。
She would spend four to five hours a day when she competed, trying to build muscles.
她在比赛期间可能会每天花费4到5个小时来锻炼肌肉。
There have been waves from four to seven metres high crashing into the Japanese coast.
不断有四到七米的海浪冲击日本海岸。
Eating four to five servings of fish per week can ensure better bone health for astronauts.
每周吃四到五次鱼能够保证宇航员骨质健康。
As you know, two thirds of the country goes underwater for about four to six months of the year.
大家知道，这个国家三分之二地区在一年当中大约有四到六个月没在水下。
In football you never know, "Quilon said." I don't know what will happen in four to five months.
在足球的世界里只有上帝知道明天会发生什么，我不知道四五个月后会发生什么，我不能在这里给你们保证什么。
As shown in Table 1, system demonstrations started four to six weeks into the construction phase.
如表1所示，系统演示开始了四到六周时，我们就进入了构建阶段。
Autism is a worldwide occurrence, and is four to five times more prevalent in males than females.
孤独症是一个世界范围内的现象，男性的发病率是女性的四到五倍。
The incubation period (interval from infection to onset of symptoms) varies from four to 45 days.
潜伏期（从感染到出现症状之间的间隔）从4天到45天不等。
The incubation period (interval from infection to onset of symptoms) varies from four to 45 days.
潜伏期（从感染到出现症状之间的间隔）从4天到45天不等。
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