Eric is
useless at math.
埃里克的数学不好。
Tom's advice is
useless to our project.
汤姆的建议对我们的计划没有什么价值。
Eric knew it was
useless to protest.
埃里克知道抗议是徒劳的。
The old laptop is practically
useless now; it's too slow to run any modern software.
这台旧笔记本电脑现在几乎没用了，运行任何现代软件都太慢了。
The map was
useless without a compass; we couldn't determine which direction to go.
没有指南针的地图是无用的；我们无法确定该往哪个方向走。
His advice turned out to be completely
useless; we followed it and ended up in more trouble.
他的建议结果完全无用；我们照做后反而陷入了更大的麻烦。
The umbrella was
useless in the storm; the wind turned it inside out within seconds.
在暴风雨中这把伞毫无用处；风几秒钟就把伞面翻了个底朝天。
Learning a language without practicing it is like having a car but no fuel—it's
useless.
不实践就学习语言就像是有车却没有燃料—毫无用处。
The spare key was
useless; someone had accidentally bent it out of shape.
备用钥匙没用了；有人不小心把它弄变形了。
The instructions for assembling the furniture were
useless; they were confusing and incomplete.
组装家具的说明书毫无用处；它们既混乱又不完整。
In this situation, your complaints are
useless; we need solutions, not grievances.
在这种情况下，你的抱怨是没有用的；我们需要解决办法，而不是不满。
The coupon was
useless because it had already expired.
这张优惠券已经过期了，所以没用了。
Without electricity, the most advanced gadgets become
useless pieces of technology.
没有电，最先进的小器具也会变成无用的技术碎片。
Ren said Huawei invests about $3 to 5 billion annually in basic theoretical research, working together with universities to study seemingly useless science.
任说，华为每年在基础理论研究上投入约30亿至50亿美元，与大学合作研究看似无用的科学。
This is because past-focused CEOs rely on their experience and prior knowledge for competitive advantage, but those methods that may have proved effective in the past can quickly become useless in the face of rapidly changing market conditions, evolving consumer needs or disruptive technologies.
这是因为过去导向的CEO依赖他们的经验和先前的知识来获取竞争优势，但这些在过去可能证明有效的方法在面对快速变化的市场环境、不断演进的消费者需求或颠覆性技术时，很快就会变得无效。
"The result is that consumers in the US cannot download or update the WeChat app, use it to send or receive money, and -- because US support for the app by data hosting and content caching will be eliminated -- the app, while perhaps technically available to existing US users, likely will be useless to them," Judge Beeler wrote in her order.
The information is extremely developed and complex, with useful or useless information abundant all around.
The length of a teacher's hair is useless if you record that in your database.
Previously, local farmers had used mulberry leaves to cultivate silkworms, which was a major industry, but the branches were considered useless and were thus wasted.
Once distrustful of the novel functions of such cars, dismissing them as useless, the 45-year-old salesman in Beijing has quickly taken to the model's fancy features.
"When there are more than 10 smart devices, I started to feel dizzy, and in fact, many of them are less used, and end up as just useless decorations," he added.
Solely relying on demand stimuli or counter-cyclical adjustments would be useless.
The evolution of a community needs to be internally driven, while outside intervention is useless," he said.