In December the International Civil Aviation Organisation (ICAO), a global standards body, adopted the EU rules and recommended that its 189 member countries introduce them by March 1st.是什么意思_In December the International Civil Aviation Organisation (ICAO), a global standards body, adopted the EU rules and recommended that its 189 member countries introduce them by March 1st.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句