高中英语翻译高手进，复制的勿进

accelerator,which moves a bar down the page at a predetermined speed .

加速器使杆在页面上以预定的速度移动。

1. the whole expense of the package of the books is 250 yuan, including postage and packing charges. please write down the address of the addressee and don't forget the postcode. 2. a few dacades ago, people typed the formal document with the typewriter. but now we use use the computer and printer to do the same job. 3. though the instant coffee and be placed for a long time, it will be bad if it is kept in the dry environment. 4. thousands of years later, citizens on earth may deal with the rubbish with ecosystem. 5. the snake was so greedy that it swallowed the mouse. 6. one of the important parts of a business people's job is to communicate with others. 7. when we walked cross the the field to home, our boots were full of muds. 8. after staying in hospital for 6 weeks, he finally recovered and went back to work.