Theory:

Meanings of difficult words from the lesson "Seventeen Oranges":
 
Numbers
Word
Meanings
1.
ApronA protective garment worn over the front of one's clothes and tied at the back.
2.
Pony-and-cart A cart with a pony.
3.
FuriouslyIn an extremely angry manner.
4.
String A set of things tied or threaded together on a thin cord.
 5.
Cabin A private room.
 6.
BlabbingTalk foolishly or mindlessly.
 7.
Concealed Hidden.
 8.
Witness  Eyewitness.
 9.
Pips Seed.
 10.
Dock An enclosed area of water in a port for the loading, unloading, ships.
 11.
ChunksSolid piece of something.
 12.
Figure out Determine.
13.
Red-handedUsed to indicate that a person has been discovered in the act of doing something wrong.