So a little unknown secret is --那么, 一个不为人知秘密是 --did you see the one with the guy, he's go ...

君君妹儿

40 years later, aero experts coined the term transonic.40年后空气动力学专家创造了跨音速这个术语。The ...

君君妹儿

Matt is the first ever hummingbird pilot.马特是首位蜂鸟飞行员。Failure is part of creating new and a ...

君君妹儿

You should be nice to nerds.你们要对书呆子好点。In fact, I'd go so far as to say, if you don't alrea ...

君君妹儿

That's an unnatural act for a rocket.这对于火箭来说，不是一种自然的行为。The third stage has a camer ...

君君妹儿

I'd like to start with a short story.我想先讲个故事。It's about a little boy有个小男孩whose father w ...

君君妹儿

The results of our work in the field我们的成果are used to produce被用于媒体创作media and deliverable ...

君君妹儿