这张图片中的铁艺藤椅要价125英镑。The rattan and wrought-iron chair pictured here costs £125.工厂里四处都立有铁柱支撑着房顶。Mills have iron pillars all over the place holding up the roof.他怒目而视，但是她铁了心不肯朝他这边看。He glowered and glared, but she steadfastly ...
...tritium, a radioactive isotope of hydrogen.氢的放射性同位素氚Tritium has a half - life of 12.4 years.氚的半衰期为12.4年,地球形成时的氚早已不存在.The Energy Secretary hopes to bring on line a safer new tritium production reactor...能源大臣希望能投产一座更安全的...