How to read the equations in English

今天小学课本上看到的单词：

the bull and the fire truck !

The bull and the fire truck

A big, bulky, brave bull named Bernardo is infuriated by anything red.

Snort

When people or animals snort, they breathe air noisily out through their noses. People sometimes snort in order to express disapproval or amusement.
Harrell snorted with laughter...
He snorted loudly and shook his head.

N-COUNT oft N of n

Snort is also a noun.
...snorts of laughter...
He turned away with a snort.

2 VERB V with quote

If someone snorts something, they say it in a way that shows contempt.
`Reports,' he snorted. `Anyone can write reports.'

3 VERB V n

To snort a drug such as cocaine means to breathe it in quickly through your nose.
He died of cardiac arrest after snorting cocaine.

R equals to