遥远yáo yuǎn
[far;distant;remote;faraway] 辽远;长远
悠长yōu cháng
1. [be remote;long-drawn-out in time or space;long]∶久远;漫长
2. [profound]∶深长
悠久yōu jiǔ
[long;long-standing long-drawn-out] 长久;久远
长期cháng qī
[over a long period of time ;long-term;age-long;age-old] 很久;长时间
