问题的难易度是以解决这个问题所花时间的长短而定的。
The difficulty of a problem was defined in terms of how long it took to complete.
要改变一个习惯，试着改变你花时间的地方。
人们曾问威拉德，为什么他选择了做需要努力和花时间的事情。
People have asked Willard why he chose to do something that needed effort and took time.
在大城市之间旅行将只要花费他们如今所花时间的一半。
Journeys between major cities will take half the time they take today.
与青少年如何花时间的变化相比，与电影相关的趋势没有那么令人不安。
The trends related to movies are less disturbing compared with the change in how teens spend their time.
如果你对人类如何学习和作为一个群体有一点兴趣，那么阅读所有的《聪明的蜂群》是非常值得你花时间的。
If you have the least bit of interest in how human beings learn and act as groups, reading all of The Smart Swarm is well worth your time.
所以，的确，它们是需要花时间的。
干份兼职会花时间的，所以越早开始越好。
It takes time to build a business so the earlier you start, the better.
有了高铁，去一个地方所花费的时间只是你开车所花时间的一半。
This could allow you to go places in half the time it takes to travel by car.
送给他们礼物只是表示你对他们关爱的一种方式，花时间的是挑选礼物。
Giving gifts is a way of showing that you care and love them. Choose a gift that will last for a long time.
花那么小，我们又没有时间，要看可要花时间的，就像交朋友也要花时间。
It is so small; we haven't time.And to see takes time, as to have a friend takes time.
准备食物在家务事中占了很大一部分，接下来最花时间的是打扫卫生和采购。
Food preparation makes up the bulk of the chores, with cleaning and shopping the next most time-consuming.
当我的家人看到，我肯为我自己花时间的改变的时候，我感觉好有必要和好有动力。
I realized how powerful and necessary it was for my family to see that I took time for myself.
计划、寻找、买一样东西(从驾车去考察到在网上搜索消费者的评价)是很花时间的。
It takes time to plan for, research, and acquire a purchase (from driving around to stores, to surfing the web for consumer reviews).
美国其他公共花园也观察到开花时间的提前，以及温度、降水量模式和物种分布情况的改变。
Other public gardens across America are also observing earlier bloom times, in addition to changes in temperature and precipitation patterns and distribution of species.
当我烹调时聪明地使用剩余的菜作为我下一顿晚餐的部分菜肴时，我就在花时间的同时创造了时间。
When I cook once and then utilize leftovers wisely so they are part of the next night's meal, I'm spending time which makes time.
你只要花20%的时间就可以掌握80%的知识，但是真正花时间的是那你需要花很多时间在上面的20%。
You can know about 80 percents knowledge by spending 20 percents time, but what really count are those 20 percents that you have to spend lots of time on them.
无论如何，我应该把这些时间用来学习那些更重要的课程，这些值得花时间的课程，在本文里我会提到一些。
I did, however, learn some important lessons, many of which are being shared in this article.
而且，当重构视图时，重构两个具有相同大小的数据库的视图所花的时间大约为重构一个数据库的视图所花时间的两倍。
Also, when rebuilding views, the time it takes to rebuild the views for two databases with the same size, is about double the time it takes for one database.
“如果你曾经搬过家，你就会知道在装东西之前把盒子撑起来是件多花时间的事情，在工厂的装配线上问题更加严重，”他说。
"If you have moved house, you know how much time is wasted constructing the base of the box before you can put anything in it, and it's even worse on a factory assembly line," he says.
减少你在电脑前所花时间的第一步，你需要了解是实际上每天真正需要花多少时间在电脑前，在很多情况下，你会大吃一惊，比如说，我估计我每天需在电脑前花6小时，可实际情况呢，在5天里，我每天花了10小时在这个上面，我不知道这是为什么
The first step in reducing the amount of time you spend in front of your screen is to get an idea of just how much time you do actually spend there.
他花时间在工厂或者在该党忠实拥护者的集会上发表演讲。
He spends his time making speeches at factories or gatherings of the Party faithful.
他们花时间来谈论托马斯的去世以及悲伤给他们带来的影响。
They took the time to talk about the loss of Thomas and how their grief was affecting them.
“这不值得花时间。”你的一个朋友说。
花时间陪伴你的孩子。
教授，谢谢您花时间回答我的问题。
Thanks for taking the time to answer my questions, Professor.
教授，谢谢您花时间回答我的问题。
Thanks for taking the time to answer my questions, Professor.
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