英语翻译Sponts medicine expents have observed for years that end
英语翻译Health experts have warned for many years that cigarette
英语翻译For four years Newman observed scuba divers as they simu
英语翻译You have probably observed that a modern stoplight at an
英语翻译I have been teaching for the last ten years.During that
英语翻译Builders have known for many years that white roofs refl
英语翻译Other important back-end projects that have adirect impa
I have been studying here for four years; by the end of next
He will have worked here for 20 years by the end of next mon
英语翻译It has been observed recently that in Ethiopia urbanizat
英语翻译Some reviewers observed that the mechanical invention fe
英语翻译,谢谢!We observed that being too optimistic in predicting
英语翻译Scientists have observed large concentrations of heavy-m