Fear of spreading the disease.

是怕病毒会扩散

to the pathogen.

有一个生物电反馈部分

It's like an obsession.

像是某种迷恋

We believe he's slowly

我们认为他正慢慢地

That's incredibly risky given the increased police presence.

提高警戒后这么做就很冒险

Let's connect the dots,

我们来连接这些点看看

The wing, however, is a masterpiece.

而机翼才是重中之重

Nearly 200 feet long, it bears the weight of the entire aircraft

长度近两百英尺 能承受整架飞机的重量

This is interesting.

这倒挺有意思的

is the element of surprise.

就是要让人吓一跳

The x component of F times the x component of v,

x 方向上的分力乘以分速度

Or F component of x times the distance moved in x

或者说 x 方向的分力乘以分位移