We take the plane as the reference.
我们把这个平面取作为基准。
We take the plane from Shanghai Pudong Airport to Atlanta International Airport, and then transfer to the Cincinnati Airport.
我们在上海浦东机场乘匕机来到了亚特兰大国际机场之后,转机到了辛辛那提机场。
We keep spare clothes and sick bags (as well as games and books) in the hand luggage, but when we can, we take the train, boat or plane instead.
我们在手提行李里多带些衣服、清洁袋(还有游戏和书),但可以的话,我们会乘火车、船、或者飞机代替。
So you can see if you take phi, and you move it over 90 degrees, we're right here in the y z plane.
你们可以看到,把phi转到90度,它就是yz面。
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