Should parents and teachers take away teens' smartphones and replace them with paper books?
父母和老师是否应该拿走青少年的智能手机并用纸质书籍来代替呢？
With no young trees to replace them, it is only a matter of time before most of the big trees disappear.
由于没有幼树来代替它们，大多数大树消失只是时间问题。
The U.S. has more than 100 million existing homes, and it would be incredibly wasteful to tear them all down and replace them with greener versions.
美国现在有超过1亿套现有住房，如果为了换成更环保的房子把它们全部拆掉，那将是非常浪费的。
But the U.S. has more than 100 million existing homes, and it would be incredibly wasteful to tear them all down and replace them with greener versions.
但美国现在有超过1亿套现有住房，如果为了换成更环保的房子把它们全部拆掉，那将是非常浪费的。
For individual companies, the temptation is always to let go of workers whose skills are no longer in demand and replace them with those whose skills are.
对于个体公司来说，它们总是想解雇那些技能不再满足需求的工人，同时用有所需技术的工人取而代之。
Tablets supplement PCs but don’t replace them.
平板是对PC的补充但不能替代它们。
Squash negative thoughts and replace them with positive ones.
击碎消极思绪，用积极的思绪取而代之。
You can erase them and replace them something better, namely your preferences.
你可以去除它们也可以用更好的，即你的喜好来代替它们。
Getting rid of these habits often involves adopting new habits to replace them.
从这些习惯中解脱出来往往需要采用新的习惯来替代它们。
Begin by removing lines 47-49 and replace them with the code in Listing 10.
首先删除47 - 49行并替换为清单10中的代码。
Whenever I find an N or an L, I look for the words and replace them as required.
每当我找到N或L，我都会寻找上述单词并根据需要替换它们。
Remove all instances of the stock strings and replace them with your own bean properties.
移除所有股票字符串的实例，并且使用您自己的bean特性代替它。
To solve the problem, researchers are hoping to replace them with "mischmetal" alloys.
为了解决这个问题，研究者们正在希望用含铈的稀土[钼系]元素合金来作为替代品。
Delete the rlogin and RSH binaries from the system, and replace them with a symlink to SSH.
从系统上删除rlogin和rsh二进制程序，并将它们替代为ssh的一个symlink。
When markets recover, the Banks might be tempted to replace them with rather cheaper talent.
等到市场恢复，银行也许会用薪资更低廉的人才来取代他们。
There are no alternatives to coffee and chocolate - nothing can replace them in my life.
没有任何东西可以替代咖啡和巧克力在我生活中的位置。
Many ar apps like ARSights track markers or objects and then replace them with their own info.
很多AR软件都支持跟踪标签和物体，然后用自带信息加以替换。
Smaller sodium ions leave the glass, and larger potassium ions from the salt bath replace them.
更小的钠离子会离开玻璃，而盐槽中更大的钾离子会替代这些空缺。
Local farmers - braving considerable stings - tried to replace them by stealing a nest from a tree.
当地农夫们冒着被蜇的危险从一棵树上偷到一个蜂巢，试图取代它们。
They are aging and Russia doesn’t have the money to replace them one-for-one," said Cirincione.
他说：“那些核力量正在老化，俄罗斯没有钱一个一个的更新。
The Geronimo distribution has no deployment descriptors, because configurations simply replace them.
Geronimo发行版没有任何部署描述符，因为配置完全替代了它们。
Mark your calendar when you buy a new pair of running shoes so you remember when to replace them.
当你买了一双新跑鞋时，写上日历，这样你能记得什么时候换掉他们。
Mark your calendar when you buy a new pair of running shoes so you remember when to replace them.
当你买了一双新跑鞋时，写上日历，这样你能记得什么时候换掉他们。
应用推荐