例句：

　　它們必須是可靠和直觀的，以便于安排定期備份和在必要時檢索文件。

　　They must be dependable and intuitive, making it easy to schedule regular backups and to retrieve files in a pinch.

　　這可能意味著回歸到更小的田地，農(nóng)作物種植成網(wǎng)格形，而不是成行；果樹修剪成二維形狀，以便于收割。

　　This could mean a return to smaller fields, with crops planted in grids rather than rows and fruit trees pruned into two-dimensional shapes to make harvesting easier.

　　每件產(chǎn)品都有號碼以便于識別。

　　Each product has a number for easy identification.