Power lines are placed underground to keep a nice view; Collection system of rain water and waste water are divided; Garbage collection is catagorized; Communication system and buildings are digital-oriented.是什麼意思_Power lines are placed underground to keep a nice view; Collection system of rain water and waste water are divided; Garbage collection is catagorized; Communication system and buildings are digital-oriented.在線翻譯_英語_讀音_用法_例句