TOEFL单词短语学习：

treat (noun): a special experience
- Going to Disneyland for Christmas will be a real treat for the kids.

partial (adjective): incomplete
- The win for the team was only a partial victory since their starting player was injured and will be unable to compete for the next few games.

exceptionally (adjective): extremely
- The boy is exceptionally bright for his age.

precautionary (adjective): taken in advance to protect against possible danger
- As a precautionary step, I believe we should check all of the equipment again to make sure it is working properly.

measures (noun): steps, methods, or procedures
- The astronauts took drastic measures to prevent a collision with the oncoming asteroid.

witness (verb): watch or view
- I'm not sure if we will be able to witness the lunar eclipse because the skies are cloudy.

deceptive (deceive) (adjective, also verb): mislead, often deliberately or inadvertently
- The stars at times seem to twinkle in the night sky, but this perception can be somewhat deceptive. Actually, the star light passing through the atmosphere creates this effect.

intensify (verb): to make stronger
- Over the past several weeks, solar flare activity has intensified disrupting radio transmissions in some parts of the world.

fret (verb): to worry unnecessarily of excessively, or be unhappy
- The boy fretted over losing his favorite toy.