Since Covid-19 was first identified in January 2020, thousands of mutations have been detected.

The COVID-19 Mobile Laboratory can analyze nucleic acid samples on the spot, allowing people to obtain results within 45 minutes.

新冠病毒核酸检测移动实验室可现场分析核酸样本，45分钟内出结果。

With the development of research, people begin to realize that there exist not only randomness but also fuzziness in practical problems.

随着人们对可靠性研究的不断深入，人们发现许多实际工程问题不仅存在随机性，而且还存在广泛的模糊性。

As a big country of meat production and marketing, China face not only opportunity but also challenge after WTO entry.

作为肉类产销大国，加入WTO后我国既面临机遇，又面临挑战。

Direct measurement is not only cumbersome but also incapable of expressing the curve analytically.

如果用逐点测绘的方法，不仅烦琐也得不到流道曲线的解析表达式

The mechanics model of ADSS aero vibration is not only elected but also solved.

建立了ADSS微风振动力学模型，并进行了求解。

She was not only intelligent but also very musical.

她不仅聪明，而且极具音乐天分。

Taking a certain satellite integrated attitude determination system as an example, the realization of EFF is discussed in detail.

以某卫星组合姿态确定系统为例，详细讨论了推广联合滤波的结构及其实现过程。

The calculated κ eff are consistent with the experimental results.

有效增殖因子κeff的计算值与实验结果符合。

Solution: Everyone should use resources like the EFF to protect our rights online.

解决方案：每个人都应该利用像EFF这些资源，来保护自己的网络权利。

He was so angry that he told his boss to "eff off" and quit his job on the spot.

他非常生气，对老板说了"去死"，当场辞职了。

The customer was being rude and demanding, so the salesperson finally had to tell him to "eff off."

这位顾客非常粗鲁和苛刻，所以销售员最终不得不对他说"滚开"。

It's not appropriate to use language like "eff off" in a professional setting, as it can be seen as disrespectful and unprofessional.

在职场中使用"滚开"这样的语言是不合适的，因为它可能被视为不尊重和不专业。

If someone tells you to "eff off," it's important to stay calm and not escalate the situation further.

如果有人告诉你"去死"，重要的是要保持冷静，不要进一步升级局面。

When someone tells you to "eff off," it's usually a sign that they don't want to talk to you anymore.

当有人告诉你"滚开"时，通常意味着他们不想再和你说话了。

There was a lot of effing and blinding going on.

咒骂声没完没了。

The Shanghai stock market has fallen about 20 per cent since mid-April on worries about the economy and concern that a flood of bank fund-raisings will hit the market simultaneously.

自4月中旬以来，上海股市已下跌20%左右，投资者担心经济走势，也担心一大批银行融资计划将同时冲击市场。

In the UK, too, opposition has been growing to the use of flood plains for new housing.

在英国，在洪泛区修建新房屋也遭到了越来越多的反对。

Poplar-based smallholder agroforestry has transformed the flood plains of Siyang County into a mosaic of green activity on the landscape.

泗阳县以杨树为主的小农农林复合经营已将这个洪泛区变成了由块块绿色镶嵌的田园。

Many grass species scatter on these flood plains as the water level is low.

低水位时，低滩散布多种草本植物；

Back then this area was a wash with streams and flood plains.

那时这里被河流覆盖，洪水泛滥。