She agreed that Xu could travel for three months every year, when there was less farm work.
她同意徐每年在农活比较少的时候去旅行三个月。
Another possibility is that when there is a lot of talent on a team, some players may make less effort.
另一种可能是，当一个团队中有很多天才球员时，一些球员可能会不那么努力。
The phone comes into play when there are multiple options to consider or important decisions to be made.
当有多种选择要考虑，或者有重要的决定要做时，手机就开始发挥作用了。
It's great because we play cards or just sit around and talk when there are no customers.
太好了，因为没有客户的时候我们会打牌或坐成一圈聊天。
The Menches brothers were selling pork sandwiches at a fair in 1885, but when there was no more pork, they used minced beef and gave it a new name, the "hamburger".
1885年，门彻斯兄弟在集市上卖猪肉三明治，但当没有猪肉时，他们用了碎牛肉并给它起了一个新名字——“汉堡包”。
It is true that when there are start-up costs, such as credit checks, involved in serving a new customer, the costs exceed those of serving a repeat customer.
的确，当服务新客户需要启动成本时，比如信用检查，其成本要高于服务老客户的成本。
Astronomical cycles have an effect on Earth's climate even during periods when there is no glaciation.
即使在没有冰川的时期，天文周期也会对地球的气候产生影响。
Several times lately, I have lain wakeful when there sounded the first note of the earliest lark, which makes me almost glad of my restless nights.
最近有几次，当最早的云雀发出第一声鸣叫时，我躺在床上睡不着觉，这使我几乎为自己的多少个不眠之夜感到欣然。
A recent study found that absence claims labels can create a stigma around foods even when there is no scientific evidence that they cause harm.
最近的一项研究发现，即使没有科学证据表明食品有害，带有“不含”字样的标签也会使其污名化。
They had just finished their meal and resumed their arm-chairs, when there came a heavy knock at the door.
他们刚吃完饭，又坐到扶手椅上，这时，传来了重重的敲门声。
Keep cool when there is a problem.
出现问题时要保持冷静。
Small cuts can be more serious when there is no doctor nearby.
如果附近没有医生，小伤口可能会更严重。
Some trees make clicking noises when there is not enough water.
当水分不足时，一些树会发出咔哒声。
The only problem I have is when there are too many kids who want to join.
唯一的问题是有太多的孩子想加入。
To begin with, people may feel stressed when there is something important to do.
首先，当有重要的事情要做时，人们可能会感到有压力。
The exhibition shows that a rich imagination is very important when there are only poor materials.
这次展览表明，在只有贫乏的材料的情况下，丰富的想象力是非常重要的。
How do archaeologists know where to find what they are looking for when there is nothing visible on the surface of the ground?
地面上什么也看不见，考古学家怎么知道到哪里去找他们要找的东西呢？
In the long run, electricity from large wind farms in remote areas might be used to make hydrogen gas from water during periods when there is less than peak demand for electricity.
从长远来看，在电力需求低于峰值的时期，偏远地区的大型风力发电场的电力可能会被用于电解水，以产生氢气。
But dogs bark when there are no predators around.
但是周围没有捕食者的时候狗也会汪汪叫。
She retained her oratorical bounce when there was so much more to do.
尽管还有许多事情要做，她仍然保持着演说家的活力。
On days when there is no school, Ramiz likes to go to work with his dad.
在无学可上的日子，拉米兹喜欢跟着爸爸去上班。
Who needs space when there remain the unfathomable depths of our own oceans?
当我们有深不可测的海洋时，谁还需要空间？
Like the hunters, the bears can't find seals when there is so little sea ice.
像猎人一样，在海冰如此少的时候，北极熊找不到海豹。
I love it when there are entire hillsides with colorful and bright aspens.
我爱那漫山遍野彩色和明亮的山杨树！
It is an easy way for sites to tell people when there is new content available.
它可以让网站更方便地告知访客什么时候有更新。
A driver will usually stop for a red light, even when there are no other cars around.
开车的人通常会在红灯前停下来，即使四周没有其它的车也是如此。
The room is dusted daily and cleaned weekly even when there are no guests in residence.
房间每天除尘一次，每周清扫一次，即使没有客人入住的时候也是如此。
She especially seemed to enjoy music on the beach at night when there was a full moon.
她似乎特别喜欢在满月的夜晚的沙滩上聆听音乐。
Add complexity only when there is a sufficient performance justification for it based on testing.
只有根据测试证明有充分的性能理由时才增加复杂性。
Add complexity only when there is a sufficient performance justification for it based on testing.
只有根据测试证明有充分的性能理由时才增加复杂性。
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