常見例句雙語例句Mexico is also a leading partner in UNEP's Billion Tree Campaign.墨西哥同樣也是環(huán)境署“十億棵樹”項(xiàng)目的積極蓡與方。blog.sina.com.cnThe Billion Tree Campaign will make a substantial contribution to the 2010 20)International Year of Biodiversity.該項(xiàng)目將對(duì)2010年“國際生物多樣性年”做出重大貢獻(xiàn)。 返回 billion tree campaign