飞快的英文：
very fast
at lightning speed

参考例句：

The cosmic rocket carrying an automatic interplanetary station snot off into cosmic space.
宇宙火箭带着自动星际站飞快冲向宇宙空间。

A watery sunlight shone down through an opening in the fast-moving cloud cover.
一束淡淡的阳光从飞快移动的乌云缝隙间投射下来。

The children rushed out of school.
孩子们飞快跑出学校.

Time flies when you are online.
上网的时候时间过得飞快。

The mouse darted away when I approached.
我走近时，老鼠就飞快逃跑了。

Time takes wings when you' re enjoying yourself.
当你尽情玩乐时，时间飞快而过。

Moving, acting, or occurring with great speed; swift.
迅速的以极高速度运动,行动或发生的;飞快的

Our money was now run to so low an ebb that we must think first of all on speed.
这时，我们快要囊空如洗，必须飞快赶路才行。

We saw rocks and stones hurtling down the mountain.
我们看到岩石以飞快的速度从山上滚落下来。

We were really travelling when the police caught us.
警察抓到我们时，我们正开得飞快。

very是什么意思：
adv. 非常，很；完全
adj. 正是的，恰好的，同一的；最…的；仅仅的，唯独的，甚至于

Very, very big,or very,very many does not mean infinite.
非常非常大，非常非常多并不意味着“无穷大”。

She was very headstrong, and very together.
她非常倔强，又非常精干。

I had often been very fearful, very angry, and very isolated.
我以前经常感到非常恐惧，非常愤怒，非常孤独。

fast是什么意思：
adj. 快速的；紧的，稳固的；不退色的；骄奢淫逸的
adv. 迅速地；紧紧地；彻底地
v. 禁食，斋戒
n. 禁食（期），斋戒（期）

This is a fast delivery.
这是一个快投球。

You cannot react fast enough to just be a fast follower.
只做一个快速跟进者不能保证反应得足够快。

He runs as fast as Paul.
他跑得和保罗一样快。

lightning是什么意思：
n. 闪电
adj. 闪电般的，快速的
v. 闪电

Like a flash of lightning and the blowing of wind with lightning speed
风驰电卷

The lightning made a zigzag in the sky.
闪电在天空划出一个Z字。

The discovery by Franklin that lightning is electricity
富兰克林对闪电即是电这一发现.