This year, 2006, marks the 30~(th) anniversary of the Tang Shan earthquake and the 20~(th) anniversary of the Chernobyl nuclear disaster.是什么意思_This year, 2006, marks the 30~(th) anniversary of the Tang Shan earthquake and the 20~(th) anniversary of the Chernobyl nuclear disaster.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句