1·How do we know when to invest in an upgrade?
我们如何知道何时投资升级？
2·People should upgrade their devices regularly.
人们应该定期升级他们的设备。
3·In 1944, Congress passed a bill to upgrade the system, but did not fund the plan right away.
1944年，国会通过了一项升级系统的法案，但没有立即为该计划提供资金。
4·There's less pressure on the airlines to upgrade the interior, unless it's a safety issue or a redesign that will save money.
航空公司内部升级的压力比较小，除非是为了安全问题或省钱而重新设计。
5·So he recommended they upgrade their software programs and that, in turn, cut operational costs and just speeded everything up.
所以他建议他们升级他们的软件程序，这反过来降低了运营成本并让一切快速运转。
1·The project will also upgrade existing tram lines and bicycle paths.
该项目还将改善现有的电车线和自行车道。
2·If you don't upgrade your tools, you risk being left behind by those who do. They will produce far more output with better quality than you.
如果你不改善你的工具，你将被其他拥有更先进工具的同行甩在后头，他们将会比你用更短的时间创造出更有价值的产品。
3·Factories can access financial incentives to upgrade technologies. And residents get subsidized prices for energy-saving light bulbs and more efficient air conditioners.
工厂可以获得财政刺激而改善技术，而居民因为节能灯泡和更有效的空调获得价格补贴。
4·Expand and upgrade road networks and transit corridors.
增加和改善道路网和交通走廊。
5·We need to upgrade our communications system.
我们需要改善我们的通讯系统。
1·“The reality is that they are two completely different, incompatible technologies, but it's a nice way to get away from TD-S, by claiming it's an upgrade or an evolution,” says Mr Thelander.
席兰德说，“ 两者实际截然不同，两个技术彼此并不兼容，但把新技术说成是升级版或是衍生版，不失为摆脱TD-S的一种体面方式。”
2·The swimming pool, in terms of dealing with a hangover, is like an upgrade of the shower room.
对于解决宿醉来说，游泳池就像一个升级版的大号浴室。
3·The upgrade was intended to redesign fundamental parts of the API, making it a smaller download with improved functionality.
这个升级版重新设计了API的基础部分，减小了下载包，改进了功能。
4·Facebook has disguised the system as a simple upgrade to Flyers, its much-derided system for selling cheap ads on a self-service basis.
Facebook将该系统伪装成一种简单的Flyers升级版，后者在自我服务的基础上销售廉价广告，因而备受诟病。
5·Android users have been waiting for the just released Gingerbread upgrade.
Android用户一直在期待刚刚发布的姜饼升级版。