Ecoutin埃库坦ECOpref.表示“环境”；“生态”；“生态学的”ecological environment issues生态地质环境Ecotype - centered Province生态省eco-stratigraphic framework生态地层格架Economi'c Information Websiteeco-environmental stability生态环境稳定性Ecological Green Space System生态绿地系统ecological research newsgroup生态研究新闻组ecological environmental cost生态环境成本eco-environmental fragility生态环境脆弱性Ecological quality evaluation生态质量评价

1. He must have gotten tied up at the office.
   他一定是办会室事务缠身。
2. If you decline the office, I'll take it on myself.
   如果你不愿意去办的话我就自己干了。