Either food scarcity or excessive hunting can threaten a population of animals.
食物短缺或过度捕猎都可能威胁到动物的数量。
Every member contributes to the rap, singing either solo or as part of a rap chorus.
每个成员都在为这首说唱乐出力，或者独唱，或者参与说唱合唱。
Tom either plays games or plays basketball.
汤姆要么玩游戏要么打篮球。
In sum, talent is not so important as working hard in either study or daily work.
总之，无论是在学习中或是在日常工作中，天赋并不像努力工作那么重要。
Most drugs offer either no real improvement or, at best, only moderate improvements.
大多数药或者没有真正疗效，或者最多也就是稍有疗效。
Either or both approaches can be taken depending on the intended use of the measurement system and the desires of the customer.
根据测量系统的预期应用场合和顾客的要求可以采用任何一种或两种方法。
Either or both might work through "nonspecific effects" that may promote a person's ability to play an active role in their own healing.
一种或两种方法可能通过“非特异性效应”起效，可能会促进一个人发挥自愈能力的积极作用。
Either or both of the etchant or the layers being etched may also be optimized for a particular etching process.
还可针对特定蚀刻工艺将所述蚀刻剂或所蚀刻的层中的任一者或两者优化。
There had been no indication of either breathlessness or any loss of mental faculties right until his death.
直到去世，他既没有出现呼吸困难也没有脑功能丧失的迹象。
要么阴天要么下雨。
About 93 percent of U.S. residents are immune to measles either because they were vaccinated or they had the disease as a child.
大约93%的美国居民对麻疹是免疫的，他们要么因为接种过疫苗，要么就是小时候得过麻疹。
They didn't get either reward or punishment for choosing the "pass" option, the uncertainty response.
当它们选择“跳过”——一个不确定的回答——就既没有奖励也没有惩罚。
Once upon a time, if you hated your job, you either quit or bit your lip.
曾几何时，如果你讨厌你的工作，你要么辞职，要么咬紧牙关坚持。
The other alternatives are attractive in theory but in practice are either impractical or offer only marginal improvements.
其他替代方案在理论上很有吸引力，但在实践中要么不切实际，要么只能提供微不足道的改进。
The reason for this is easy to recognise: in nature, the existent organisms either adapt or are regularly replaced by new types.
原因很容易理解：在自然界中，现存的生物要么适应环境，要么被新物种取代。
Animals also have to adapt to desert conditions, and they may do it through two forms of behavioral adaptation: they either escape or retreat.
动物也必须适应沙漠环境，它们可能通过两种形式的行为适应来做到这一点：它们要么逃跑，要么撤退。
At level 3, distorted language such as overgeneralizations, presumptions, magnified positions, and either/or emerges.
在3级水平上，出现混乱的语言，比如以偏概全、预设立场、夸张用词、出现“要么……要么……”。
Although a man of blood and violence, Richard was too impetuous to be either treacherous or habitually cruel.
虽然理查德是一个血腥暴力的人，但他过于冲动，既不奸诈，也不惯于残忍。
When either or both occurs, liquidity or savings do not grow any more.
当出现上述两种情况之一、或两种情况同时出现时，流动性或储蓄不再增长。
Have you had any dealings with any of the suspects, either personally or professionally?
你是否与任何嫌疑人有过私人或业务来往？
He didn't want to go on the record as either praising or criticizing the proposal.
他不想公开赞扬或批评这项提议。
The segments are filmed using either local actors or the actual people involved.
这些片段是用当地的演员或真实的当事人拍摄的。
You can take part in multiplayer games either on a LAN network or via the Internet.
你可以上局域网或者国际互联网参加多人游戏。
High schools in Portland, Chicago, and elsewhere have either implemented or will soon introduce ethnic studies classes.
波特兰、芝加哥和其他地方的高中已经或即将引入种族研究课程。
In one study, participants were asked to listen to a list of names while either doodling or sitting still.
在一项研究中，参与者被要求在涂鸦或静坐的时候听一份名单。
Abundant information about cooking is available either online or on TV. Young people do less cooking at home than the elderly these days.
网上和电视上都有很多关于烹饪的信息。现在年轻人在家做饭的次数比老一辈少。
Seller may draw against the Letter of Credit for either or both of the Order Cancellation Charge and the Shipment Postponement Charge.
卖方可以从信用证中的款项中支取订单撤销费和／或发货延迟费。
Clearly, either these customers cannot distinguish butter from margarine or they use the term "butter" to refer to either butter or margarine.
显然，这些顾客要么是分不清黄油和人造黄油，要么就是用“黄油”这个词来指黄油或人造黄油。
Clearly, either these customers cannot distinguish butter from margarine or they use the term "butter" to refer to either butter or margarine.
显然，这些顾客要么是分不清黄油和人造黄油，要么就是用“黄油”这个词来指黄油或人造黄油。
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