However, Uber's task in China became much harder when China's two largest car-hailing companies, Didi and Kuaidi, merged early last year.

The political power of China's taxi services-which see ride-hailing companies as dangerous rivals-presents a particularly strong challenge, he said.

他说，中国出租车行业的政治力量是一个尤其强大的挑战，出租车公司把网约车公司视为危险的竞争对手。

The week before last week, ride-sharing business Didi acquired 99 in Brazil, crimping fellow group Uber's prospects in the country.

上上周，共享出行企业滴滴收购了巴西的网约车企业99，势必影响竞争对手优步（Uber）在该国的发展前景。

The new standard is related to the background check system for hiring car-hailing drivers.

新标准与雇佣网约车驾驶人员的背景审查体系有关。

They all rely on low-paid drivers and couriers to provide services such as ecommerce, ride hailing and food delivery.

它们都依靠低薪的司机和快递员提供电子商务、网约车和送餐等服务。

That has discouraged some ride-share drivers.

这让一些网约车司机感到泄气。

There are fewer and fewer rewards, said Wen Zhenjiang, 37, who worked for Didi and Uber in Beijing for nearly two years and is now looking for work driving trucks.

37岁的温振江曾在北京为滴滴和Uber工作了近两年，目前正在寻找驾驶卡车的工作，他说，（开网约车）的回报已越来越少。

Didi Chuxing had just defeated Uber in an expensive battle for dominance in the world's largest ride-hailing market, and it enjoys such a high global profile that it counts Apple and other big names among its investors.

滴滴出行为了在这个世界上最大的网约车市场中占据主导地位，刚在一场代价昂贵的竞争中击败了Uber。滴滴在全球享有如此高的名声，以至于其投资者中有包括苹果（Apple）这样的大牌公司。

The company plans to give subsidies for car rentals, insurance purchases and more for beginners who join DiDi's ride-hailing fleets.

该公司计划为加入滴滴网约车的新司机提供租车、购买保险等补贴。

Chinese ride-hailing giant Didi Chuxing has announced that it will invest 200 million yuan or about 30 million U.S. dollars to promote employment.

中国网约车巨头滴滴出行宣布将投资2亿元（约3000万美元）来促进就业。

China's ride-hailing company Didi Chuxing and State Grid Corporation of China, an electric power giant, have also set up businesses in Brazil.

中国网约车公司滴滴出行以及电力巨头中国电网都在巴西展开了业务。

Grace, who has driven full-time with Grab for nearly four months, was caught in heavy traffic when the pregnant passenger started screaming.

格雷丝是一名拥有4个月工龄的网约车全职司机，而当怀孕开始尖叫时，交通却非常拥堵。

China's government has proposed strict new limits on car hailing apps" use of migrants as drivers in major cities, in a blow to Didi Chuxing and potentially to other Chinese internet groups.

中国政府针对网约车服务在大城市使用外来务工人员作为驾驶员提议了严格的新限制，此举打击了滴滴出行（Didi Chuxing），潜在还将打击中国其他互联网集团。

In some cities, taxi drivers have gone on strike, sometimes harassing ride-share drivers.

有些城市的出租车司机采取了罢工行动，有时还骚扰网约车司机。

Does the chief of the Canadas believe the English will keep the terms?

驻加拿大总司令，你相信英国人会守约吗？

One of Chinas most-wanted men has appealed to Canadas highest court in a last-ditch effort to avoid deportation to China.

中国头号通缉犯之一的男子最后挣扎著向加拿大最高法院诉请撤销遣返回中国。

Canada medical security is an important component of the Canadas social security system.

加拿大医疗保障是该国社会保障体系的一个重要组成部分。

And then one of my heroes, Geoffrey Canadas, grew up in the South Bronx.

还有我心目中的英雄之一——杰弗瑞·凯那德，他在南布朗克斯长大。

What about calculus? Everyone teaches it, so it must be important, right?

那微积分呢? 每个人都学它, 所以它也一定是重要的, 不对 吗 ?

As is well-known , Newton-Lebniz Formula plays a very important role in calculus.

Newton - Lebniz公式在微积分学的重要地位已众所周知.

The at minimum so as not to overlap with calculus.

本课程之内容与微积分不宜重叠.