All airplanes were grounded, meaning that they were not allowed to fly right after the attacks.

所有的飞机都停飞了，也就是说袭击发生后它们都不允许起飞了。

To put it into perspective, it's the combined emissions of all airplanes in the world worldwide.

这么说吧，这一部分相当于全世界飞机的排放总量。

You just like all those brand new, beautiful airplanes that we're buying.

你就像我们购买的所有那些全新的、漂亮的飞机一样。

In addition, all airplanes must have parts on their wings that move.

此外，所有飞机的机翼上都必须有可移动的部件。

MANOUSH ZOMORODI: Then we went over to the hangar where he has all the airplanes.

马努什·佐莫罗迪：然后我们去了他存放所有飞机的机库。

All airplanes must also have wings, because the wings are the feature that actually lifts the plane into the air.

所有飞机还必须有机翼，因为机翼是实际将飞机升到空中的部件。

Even though the carbon footprint of dairy products has declined since 1990, Dairy production is still responsible for 3 percent of all greenhouse gas emissions, even more than all airplanes combined.

尽管自1990年以来乳制品的碳足迹有所下降，乳制品生产仍占所有温室气体排放量的3％，甚至超过了所有飞机的总和。

As described by the  airline itself, when the button is pressed, " it sounds as if three steamboats  are passing under the plane." All airplanes have a ground call button, which is similar to a horn, KLM added.

正如航空公司自己所描述的那样， 当按下按钮时，“听起来好像有三艘汽船从飞机下方经过。 ” 荷航补充说， 所有飞机都有一个类似于喇叭的地面呼叫按钮。