试算表

例句：

1. 1.I need to buy a new computer for my office.
   我需要为我的办公室买一台新电脑。
2. 2. The computer has been working perfectly since it was installed.
   这台电脑自从安装后一直运行得很好。
3. 3. Computers are essential tools for modern life.
   计算机是现代生活中必不可少的工具。