| arrange |
to put in some kind of order, pattern, or design. |
| assistant |
a person who gives help or aid. |
| batch |
an amount used or produced at one time. |
| greed |
a great desire for more wealth and possessions than one needs or deserves. |
| identification |
something that proves who a person is, such as a driver's license or passport. |
| infect |
to spread germs or disease to. |
| joyous |
full of joy; happy. |
| numerous |
being in great number; many. |
| offspring |
the child or young of a particular human, animal, or plant. |
| operation |
the act or process of working or running. |
| plug |
an object made of cork, rubber, or other material used to block an opening. |
| revolutionary |
creating or leading to great change. |
| sacrifice |
the act of giving up something of great value to show loyalty or deep affection. |
| till1 |
until. |
| vaccine |
a substance used to protect people and animals from very serious diseases. Vaccines contain germs of a particular disease--these germs been killed or changed in a certain way in a laboratory to make them safe. A vaccine goes into a person's body in a shot that is given by a doctor or nurse. After a vaccine is put into a person's body, that person will not get that disease or will get only a mild case. |