Usually it has the date carved on it.

通常建造时间会被刻在地基上。

This lowers construction costs, enables offsite manufacturing and cuts build times.

这降低了建设成本，使非现场制造成为可能，并缩短了建造时间。

First, it is 600 years ago that the bell, a model was made in butter and beeswax.

首先，建造时间是600年前，大具由黄油和蜂蜡制成。

It's thought the time capsule was first placed there in the 1795, when the building was constructed.

因此推测时间胶囊时间为1795年，也就是这大楼建造时间。

And therefore, you've never built the time machine.

因此你从未建造过时间机器。

It actually took them longer to construct than a real house.

实际上，建造它时间比建造真正房子还要长。

The sculpture was erected in Niteroi Beach in Rio de Janeiro state and took more than a week to build.

这一雕塑矗立在了里约热内卢倪德罗沙滩上，建造时间为期一周。

Just the throne took seven years to construct.

就花了 7 年时间建造。

Studies show that it took 100 000 people over 20 years to complete it.

研究表明它由10万人花费20多年时间建造而成。

Hayabusa took three years longer than planned after a series of technical problems.

在经历了一系列技术问题后，隼鸟号建造时间比原计划多了三年。

Researchers from the UCLA Samueli School of Engineering built the demonstration system in two years.

加州大学洛杉矶分校萨缪利工程学院研究人员花了两年时间建造了这个演示系统。

It took Noah Peck about three days to construct a wall he could scale.

诺亚·佩克花了大约三天时间才建造一他可以用来攀登墙。

The Step Pyramid at Saqqara about a hundred years or so before the Giza Pyramids are built.

萨卡拉阶梯金字塔建造时间比吉萨金字塔早大约一百年。

So until we build a time machine, or at least some really good models, the jury is out.

因此，在我们建造时间机器或至少一些非常好型之前，还没有定论。

It took five years to build.

它花了五年时间建造。

First thing we do, take six million bucks and build a time machine.

我们做第一件事, 就是拿出600万美元, 建造一台时间机器。

So let's imagine that I build a time machine for myself.

那么让我们想象一下，我为自己建造了一台时间机器。

You spent years building those bridges, why burn them now?

你花了数年时间建造那些桥梁，为什么现在要烧毁它们？

Took about two years to build and it's built to last for very long time.

花了大约两年时间建造，它建造可以持续很长时间。

It's like constructing all the buildings in a city at the same time.

这就像是在同一时间建造城市中所有建筑。