ever after 从此以后
例：They got married and lived happily ever after. 他们结婚了，从此过上了幸福的生活。（人教版高中英语必修三P15）
ever before 以前，在此以前
例：Technology has made our systems faster, safer, cleaner and more reliable than ever before. 技术使我们的系统变得比以前更快捷、更安全、更干净、更可靠。（FORBES）
ever since 从那以来
例：He was laid off a year ago, and has been looking for work ever since. 一年前他被解雇了，从那以来到现在一直在找工作。（NPR）
