1. After all one can't leave his shadow lying about...
about：周围，到处
例：
Chicken picked about the field.
鸡在田地到处啄食。
I do not think you shall litter thing about.
我看你不应该把东西到处乱扔。
2. After all one can't leave his shadow lying about...and not miss it...
miss：漏掉，弄丢
例：
He listened attentively so as not to miss a single word.
他不想漏掉一个字，所以很用心听讲。
People who do things too quickly find that they miss something.
那些匆忙行事的人常会发现他们有些事情漏掉了。
3. It won't take long.
take long：花很多时间
例：
Did it take long to finish it?
完成它用了很长时间吗？
It didn't take long to find the problem.
没费多少时间就找到了症结所在。
4. She isn't vicious.
vicious：邪恶的，恶意的
例：
His reputation was hurt by his enemy's vicious lies.
他的敌人用恶毒的谎言诋毁他的名声。
You bastards! You vicious, heartless bastards! Look what you've done to him!
你们这些混账！你们这些恶毒的没心没肺的混账！看看你们对他做了什么！