生命体通过某种生物过程聚集矿物质。The living organisms somehow concentrated the minerals by biological processes.绿色和平组织设法聚集起足够数量的小船在海上拦截该船。Greenpeace managed to assemble enough boats to waylay the ship at sea.我们聚集在露台上,手里紧张地握着盛有冰镇葡萄酒的酒杯.N...
the many isotopes of carbon碳的诸多同位素Tritium is one of the mildest radioactive isotopes.氚是最和缓的放射性同位素之一.The inferno spewed a deadly plume of radioactive isotopes into the atmosphere.这个象炼狱般的地方将一缕致死的放射性同位素喷入大气层....
a heartbreaking story伤心的故事This year we won't even be able to buy presents for our grandchildren. It's heartbreaking.今年我们甚至无法给自己的孙儿辈买礼物了。这真让人心碎。After this heartbreaking experience, Thorpe turned to professional ...