Learners’ Dictionary

1.ultrasonic
major definitions:
ultrasonic sound waves are too high for humans to hear
example sentence:
Cats, too, are sensitive to ultrasonic frequencies and can hear mice and voles in hidden places.
2.scanner
major definitions:
a machine that passes an electrical beam over something in order to produce a picture of what is inside it
example sentence:
The developer hopes it would link with the existing Magnetic Imaging Centre, which already operates a sophisticated body scanner.

3.drum up
major definitions:

examto get support, interest, attention etc from people by making an effortple sentence:
example sentence:
The drums then took up a regular beat as he stalked back to the coffin.
4.compelling
major definitions:
very interesting or exciting, so that you have to pay attention
example sentence:
This approach to the nature of dreaming is highly compelling.

5.challenging
major definitions:
difficult in an interesting or enjoyable way
example sentence:
This has to be achieved without adversely affecting design quality, a task that can prove quite challenging.

Holle

My name is Alan.  My age is 19 years old.  My constellation is Virgo.  My interest is to play basketball and read novels.  Sometimes I will play computer with my friends.  I’m from Yunlin’s Douliu City.  I have never left Yunlin to study before I went to college.  My goal for the future is In terms of finance and management.  I hope that the university can be inclined to learn this knowledge and further planning and preparation.