There are two main groups of bats, which are believed to have evolved independently of each other, but both from a common ancestor.
蝙蝠主要有两大类，人们认为它们是各自独立进化的，但都来自同一个祖先。
More recently there were similar doubts about probiotics and plant-based meats, but both have exploded into major supermarket categories.
就在不久前，人们也对益生菌食品和植物肉产生了类似的怀疑，但如今这两种食品都成为了超市的重要品类。
We had been together for two years, but both of us felt the relationship wasn't really going anywhere.
我们在一起已经两年了，但是我们俩都觉得这种关系实在不会有什么结果。
But both studies show that long life isn't just a matter of your physical health but of your mental health.
但这两项研究都表明，长寿不仅关系到你的身体健康，还关系到你的精神健康。
But both responded with steep price cuts.
但这两者都以大幅降价作出回应。
But both quit, derided for their bearishness.
但是，两人都离职了，背后是一片讥讽之声。
But both firms are also touting new strategies.
但两家公司也还都有招揽生意的新策略。
But both maps and decree are controversial.
但是不管是地图还是禁令都备受争议。
But both cost and reliability are growing problems.
但是，成本和可靠性的问题日渐严重。
But both of them rely on the assumption of the uniformity of the nature.
但是这都依赖于，自然统一性的假设之上。
But both Banks are deeply rooted in retail and commercial banking too.
同时，两家银行均以零售和商业银行业务为基石。
I love sleep and I love my bed, but both deserted me in the third trimester.
我喜欢睡觉，我爱我的床，但在后期的时候他们都遗弃了我。
Two of the men, Dennis and Volodya, do not have HIV but both their wives do.
丹尼斯和沃尔·达亚这两个男人都没有携带艾滋病病毒，但是他们的妻子都是艾滋病病毒的携带者。
Each diagram has its pros and cons, but both are relatively easy to draw.
每个图都有它的利弊，但都相当容易绘制。
But both figures have been affected by a shift in the regional pattern of sales.
但是这两组数据均受到了各区域之间销售情况此消彼长的影响。
But both country's coastlines are home to some of the world's finest island groups.
可是在这两个国家的海岸线上，都有着世界上最好的岛群。
But both those times, there were things he could do to make sure everything went right.
但那两次他都为保证一切顺利有所行动。
But both rates have doubled from before the recession, from 4.7% and 2.1%, respectively.
但是这两个比率都是经济不景气之前的两倍，分别是从4.7%和2.1%开始。
But both countries, like all others in Europe, have the right to choose their own friends.
但两国像欧洲其他的一些国家一样，都有权利选择自己朋友的。
Toyota and Honda aren’t going to stop building cars, but both see a big market for robots.
丰田和本田不准备停止生产汽车，但两个公司都看到机器人的巨大市场需求。
Neither move amounts to outright privatisation, but both will reduce the scope of the state.
这家公司的所有权都不会完全私有化，但两者都将减少国有股份的持有量。
I outline two basic approaches here, but both are not as different as they might first seem.
我在这里概述了两种基本的方法，但是这两种方法并不是像第一眼看上去那样区别很大。
But both claim their planes will consume at least 15% less fuel than the current A320 and 737.
但是这两家公司都声明他们的飞机比a320和737的耗油量少15%，并且它们的价格也便宜很多。
Neither are required, but both add a bit of robustness and documentation to the existing version.
它们都不是必需的，但都会给现有的版本增加一些健壮性和文档。
But both East and West are seeing big changes in the role of women and traditional family life.
但是东西方一起在见证着女性和传统家庭生活角色的巨大演变。
But both countries can start by shaking off the mindset that demand has to come from somewhere else.
但是通过摆脱需求只能来自国内的这种固有心态，这两个国家都可以重新出发。
Neither Germany nor Japan enjoyed a credit boom earlier this decade but both economies are suffering.
近十年来德国和日本的信贷市场都没有经历扩张，但它们的经济却都遭受了损失。
But both companies made things worse by loosening their standards and accepting riskier types of loans.
然而这两家公司放宽放贷标准以及接受高风险贷款的做法却使事情进一步恶化。
But both schools have spent more time theorizing than observing gossipers in their natural habitats.
但是所有的学派都将时间用在了进行理论研究上，而非去观察散布流言者的天生习惯。
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