Bears fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
The success of her business made it difficult for her to carry out her as wife and mother.
Before the final examination,many students have shown of tension.Some have trouble in sleeping while others have lost their appetite(胃口).
Small as it is,the ant is as much a creature as all other animals on the earth.
To get as much first hand information as possible,inspectors will hold workshops and distribute questionnaires, .
Professor Smith,along with his assistants, on the project day and night to meet the deadline.