1. 很久以前：long for 渴望 | long since 很久以前 | long since 很久以前;很久以来

2. 很久以前;很久以来：long for 渴望 . | long since 很久以前;很久以来 . | so long as 只要,如果;既然 .

3. long since的意思

3. 从前：long shot 远投 | long since 从前 | long suit 长处

4. 很久以前,早已：8. since then 从那时以后,从此以后 | 9. long since 很久以前,早已 | 10. apply oneself to 致力---