保持完美

past perfect───（动词的）过去完成时

present perfect───现在完成时

to perfect───完美

letter-perfect───完美字母

present perfects───现在完成时

past perfects───（动词的）过去完成时

preterperfect───预完善

Dating rules are very important if you want to win and keep your perfect match.───如果你想赢得对方的好感并牢牢抓住对方的心，约会法则对你非常重要。

We should be grateful all the time and keep having a healthy attitude to our life forever, keep having perfect characters and enterprising spirit.───我们应该一直感谢，而且对我们的生活永恒保持一种康健的态度，保持拥有一种完美的品行以及具有开创能力的精力。

Convention over configuration: To keep perfect flexibility, Java frameworks maintain massive, pervasive configuration files.───约定优于配置：为保持良好的灵活性，Java框架保持了大量普遍的配置文件。

Please keep perfect silence in the bird watching hides, and doors and windows must be closed quietly when you leave.───在观鸟屋内必须保持安静，离开前切记关上所有门窗。

Actually, the modeling material used in model test can hardly keep perfect similarity with prototype material.

A circle of friends, doesn't always keep perfect relationships.". Anthony Liccione