We use fetch to tune performance. We may use lazy to define a contract for what data is always available in any detached instance of a particular class.

我们可以采用延迟去定义一些契约，用抓取来改善性能，对某特定类的某个脱管的实例，知道有哪些数据是可以使用的。

He went to fetch some books.

他去取来了一些书。

We'll send someone along [round, over] to fetch it.

我们将派人来取。

We create a full window to show every slide and fetch associated contents into it.

我们创建完整窗口来显示每个幻灯片，并取相关内容置入其中。

All computers do is fetch and shuffle numbers, he once explained, but do it fast enough and "the results appear to be magic".

他曾经解释说，计算机所做的只是获取和处理数据，但如果处理速度足够快，“结果就像魔法一样神奇”。

The night passed, the next day also; but nobody came to fetch the Shoes.

黑夜过去了，第二天也如此；但是，并没有人来取鞋。

I had to fetch water from the well.

我得去从水井里打水。

She kindly offered to go and fetch him some beer.

她体贴地主动去给他拿了些啤酒来。

The inhabitants have to walk a mile to fetch water.

居民得走一英里路去取水。

The painting is expected to fetch between two and three million dollars.

这幅画预计能卖到两百到三百万美元。

She's gone to fetch the kids from school.

她去学校接孩子了。

The painting is expected to fetch $10 000 at auction.

这幅画预计拍卖可得 10 000 元。

The painting is expected to fetch up to $400,000 at auction.

这幅画预计在拍卖会上能卖到40万美元。

"She's in prison," the Queen said to the executioner, "fetch her here."

“她在监狱里，”王后对刽子手说，“把她带过来。”

Some villages do not have a well and pump, so they have to fetch water with containers from miles far away.

一些村庄没有井和水泵，所有他们要用容器去很远的地方取水。

He cut it down to fetch his tool.

他为了取出工具而将它砍倒了。

Under the generalship of Rat, everybody was set to do something or to fetch something.

在水鼠兰特的指挥下，每个人都着手干点什么，或者去取点什么东西。

It will take us a long time to fetch it.

我们得花很长时间才能把它取来。

One day she wanted to go into the forest and fetch some food.

一天，她想去森林里取些食物。

The lady, delighted with the idea, had told her to fetch the child at once.

那位太太对这个主意很满意，让她马上把孩子接来。

Grass-fed milk can fetch up to 2.5 times the price of conventional milk.

草饲牛奶的价格可以达到传统牛奶的2.5倍。

He could not help thinking of the policeman who was coming from Frankfurt to fetch him to prison.

他不禁想起那个从法兰克福来把他抓进监狱的警察。

We are going into the forest to fetch wood.

我们要到森林里去砍柴了。

Ye paltry cowards, and arm yourselves and guard the doors, whilst I send one to fetch the watch!

你们这些没用的懦夫，武装起来，守住那些门，我派一个人去叫卫兵！

On a snorkeling trip in Bermuda a few years ago, we met a terrier named Lexi, who liked to fetch rocks.

几年前，在百慕大的一次浮潜旅行中，我们遇到了一只名叫莱西的小猎犬，它喜欢捡石头。

Volunteers are sent to fetch it.

志愿者被派去取它。

I'm expected to fetch and carry for everyone in the office.

办公室里每个人都指望我听他们差遣。

Like its name suggests, this fetch action makes an HTTP request to fetch the configured source URL.

顾名思义，此获取操作发出HTTP请求以获取已配置的源url。

The following method explains how to fetch this list.

接下来的方法解释了怎样获取该列表。

So be sure to spawn a thread to fetch this data.

因此必须确定生成一个线程来获取数据。