If prepared many hours ahead, the mixture may separate out.
如果提前很多小时配制，这种混合物就可能会分离。
I spent many hours mindlessly banging a tennis ball against the wall.
我花了好多个小时单调地对着墙打网球。
A writer spends many hours going over and over a scene—changing a phrase here, a word there.
作家花许多个小时反复润色一个场景—这儿改个短语，那儿改个单词。
It was many hours since he had eaten anything and he started to yawn from hunger.
他已经很多个小时没吃东西了，饿得开始打呵欠。
How many hours does she sleep?
她每天睡几个小时？
How many hours do you sleep every night?
你每天晚上睡几个小时？
How many hours is the club open on Thursday?
俱乐部星期四开放几小时？
He would keep working hard on something for many hours till midnight.
他会为一件事情奋战数个小时，直至午夜。
We talked and talked, and so many hours passed by and darkness came.
我们交谈甚欢，好几个小时过去了，天黑了下来。
Yuki had spent many hours of her two-week visit weeding in the garden.
友希来这里的两个星期里，有很多时间都在花园里除草。
In Japan, it can take many hours to prepare and drink tea with your guests.
在日本，为客人备茶、陪客人一起喝茶可以花上好几个小时。
I can't spend many hours watching a whole video and I'm not a very patient person.
我不能花好几个小时看一整个视频，我不是一个很有耐心的人。
The children have worked busily but happily for many hours, making the little baskets for the birds.
孩子们忙碌而快乐地工作了好几个小时，为鸟儿做了小篮子。
Then how many hours of sleep should junior high school students get a night? The answer is nine.
那么初中学生每晚应该睡多少个小时呢？答案是9小时。
Give your workplace a spring facelift! Living magazine is offering three prizes of between ￡10, 000 and ￡50, 000 to be spent on improving the school, college or office where you spend so many hours each day! If you win, the money will be yours to spend as you wish to make life more pleasant.
给你的工作场所来个春季大改造吧！《生活》杂志为你提供了3个奖项，奖金从1万英镑到5万英镑不等，用于改善你每天花费大量时间学习或工作的学校、学院或办公室的环境。如果你中奖了，这些钱将由你随意使用，让生活更愉快。
How many hours will you work tomorrow?
你明天工作几小时？
How many hours a day did you do lessons?
你一天上几个小时的课？
It takes many hours to craft a single sign.
制作一个标志要花上数小时。
She rose, and looked for many hours at the beautiful green banks.
她站了起来，花了好几个小时望着美丽的绿色河岸。
A lot of children spend many hours each day in front of the television.
许多孩子每天花好几个小时看电视。
We should have known that long-distance trains are often many hours late.
我们早应该知道长途火车经常会晚点好几个小时。
The boy practices the game for many hours a day on the floor with his board.
这个男孩每天在地板上用他的键盘练习很多个小时的游戏。
None of us believed the time traveler, and we argued with him for many hours.
我们没有人相信时间旅行者，还和他争论了好几个小时。
The next morning they started off again, and it took them many hours before they reached Mayenfeld.
第二天早上，他们又出发了，花了好几个小时才到达梅恩费尔德。
He spent much of his childhood in France where he spent many hours each day outdoors painting pictures.
他的大部分童年时光在法国度过，在那里，他每天要花上几个小时在户外画画。
Once the data and associated materials appear in a repository, answering questions and handling complaints can take many hours.
一旦数据和相关的材料出现在一个存储库，回答问题和处理投诉可能需要数小时。
I can write for many hours a day.
我一天中能花很多时间在写作上。
Who CARES how many hours you work?
谁在乎你工作了几个小时？
How many hours' sleep do you need?
你需要几小时睡眠？
Some of us deal with too many hours.
一些人工作太多个钟头。
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