动词 bottom:

1. provide with a bottom or a seat

2. strike the ground, as with a ship's bottom

3. come to understand

bottomsn.底；末尾；臀部名词bottom的复数形式.bottomn.底部；底端adj.底部的v.触底；打(基础)bottom traw水底拖网bottom flap折叠底,底折翼bottom draw底部吸引bottom felt下毛纸bottom hole井底,底部炮眼,底孔bottom floor底板bottom price底价bottom grass底层草bottom flash底部飞边,底飞边bottom check底部裂缝

1. Please dust all the books on the bottom shelf.
   请把底层书架上的书都掸一掸。
2. The nation's biggest computer manufacturer, once an engine of growth and an unrivaled success, said the job cuts and plant closings would cost about$6 billion before taxes, a sum that will be reflected in its bottom line by the end of this year.
   我国最大的电脑造商，一度曾为带动[经济]成长的火车和无与伦比的成功企业，说裁员及工厂关闭将耗费60亿元——纳税前数字。此一数字将在年终结账的最后项目中显现。