We could only study those animals that we happened to have on hand.
我们只能对碰巧弄到手的动物进行研究。
A sun oven could be one of the most useful items to have on hand in case of emergencies.
太阳炉可以是其中一个最有用的项目，对在手案件的紧急情况。
ABSTRACT: This guide will teach you what wines work best for your wedding and how much wine to have on hand.
摘要：如何将我们的婚礼办得体体面面风风光光呢？本文将从婚宴用酒的角度给您支招，帮您选出适合自己的婚宴用酒。
You'll notice that some of the activities do require materials, such as food or craft items, but each activity is designed to be done using whatever you happen to have on hand.
可能你会发现有些活动需要一些材料才能完成，比如食物或小玩意，但每种活动都是根据你现成的东西设计的。
On the one hand, if the body doesn't have enough cholesterol, we would not be able to survive. On the other hand, if the body has too much cholesterol, the excess begins to line the arteries.
一方面，如果身体没有足够的胆固醇，我们将无法生存；另一方面，如果体内胆固醇过多，多余的胆固醇就开始让动脉变厚。
I have a wife and two children and we live from hand to mouth on what I earn.
我有妻子和两个孩子，我们靠我挣的钱勉强糊口。
Give away any food you have on hand, or lock it up and give the key to the neighbours.
把你手头的食物分发送人，或锁藏起来，把钥匙交给邻居们。
On the one hand they'd love to have kids, but on the other, they don't want to give up their freedom.
一方面，他们想要孩子，但另一方面，他们又不想放弃自由自在的生活。
He was said to have head-butted one policeman and stamped on another's hand.
据说他用头撞了一名警察，还把另一个警察的手给踩了。
On the other hand, task-timers have a list of things they want to accomplish.
另一方面，根据任务安排时间的人有一个他们想要完成的事情的清单。
Infants, on the other hand, didn't appear to have worse sleep whether they slept in the same or different room from their mothers.
另一方面，婴儿无论是否与母亲睡在同一个房间，他们的睡眠质量似乎都没有变差。
On the other hand, gender equality means women have to compete in the workforce.
另一方面，性别平等意味着女性必须在工作中竞争。
On the other hand, gender equality means women have to compete with men in the workforce.
另一方面，性别平等意味着女性必须在工作中与男性竞争。
The details of the content of the lecture, on the other hand, seem to have gone forever.
另一方面，讲座内容的细节似乎永远消失了。
Neuroscientists, on the other hand, armed with brain scans and EEGs, have not been subject to the same degree of critique.
另一方面，配有脑部扫描和脑电图的神经科学家却未受到同等的批判。
None of this is likely to be on hand if you cannot even afford to mend the dismally few highways you have.
如果你甚至不能承担惨淡的几条高速公路的维修，那么这些都不太可能发生。
I have always admired students who hand in their homework on time and never forget to do it.
我一直很欣赏那些按时交作业并且从不忘记做作业的学生。
My mother was so touched by her gesture that she decided to go back to the store and give the cashier a five-dollar bill to keep on hand in case the same happened to someone else if they didn't have enough money for all of their groceries.
我母亲被她的举动感动了，她决定回到店里，给收银员一张五美元的钞票，让他放在手边，以防别人在没有足够的钱支付所购买的东西时发生同样的情况。
The storage of sensible heat, on the other hand, allows flexibility as to temperature; in addition, safe substances like water and most rocks have large sensible heat capacities.
另一方面，感热的储存允许温度有一定的灵活性。此外，水和大多数岩石等安全物质具有较大的感热容。
Have someone else on hand to note everything the user is doing.
让手头上的其他人去记录用户都做了些什么？
Plan ahead so that you have the ingredients on hand to create healthy meals.
计划前，你手边要有制作健康膳食的材料。
To communicate with her, you have to spell words out on her hand.
跟她交流，你必须把字一个个地在她手心里拼写出来。
The new Confucius statue, on the other hand, appears to have struck a wrong note.
另一方面，这次这座关于孔子的新铜像的树立好像起了反作用。
On the one hand, you have to trust the algorithm; on the other hand, if you don't trust the algorithm, why are you using spaced repetition software?
一方面，你不得不信任这个算法，另一方面，如果你不信任这个算法，你为什么还使用记忆重复软件？
On the other hand, scientists have had to explain how such creatures functioned.
另一方面，科学家还需要弄清这些生物的生存机理。
Mini explained that to have mounted the door on the left-hand side would have required an expensive relocation of the fuel filler system.
宝马公司解释称，如果要将这扇小门装在车身左边，就得让汽车的加油系统搬家，耗资必将十分巨大。
If you have to put the guy's hand on it, you're less likely to kill him.
如果你要把被电击者的手放在上面，你电死他的可能性会降低。
Once they realize that there's more to money than just spending on whatever their latest impulse is, they'll want to buy something larger than the amount they have on hand.
一旦孩子们意识到比起将钱用到最近一个突如其来的念头上，钱还有跟多的用途时，他们就会想要去买一些大于他们手头上物品价值的东西了。
A spokeswoman said the masks are on back order, meaning the Minnesota company doesn't have enough on hand to ship to all the customers who want them.
该公司发言人说，这种口罩已经无法满足订单，这意味着公司手头没有足够的产品向所有订购口罩的客户发货。
Women, on the other hand, have to shave their legs.
另一方面，女性不得不刮除腿毛。
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