钋是高放射性的元素,金属.Polonium is a highly radioactive element and a metalloid.两个遗留有钋的星球被一些不明原因突然破坏.Two old plutonium disposal plants damaged at once by some unestablished reason.钋的同位素在自然界中的确存在,但是相当罕见.The isotope does occur in na...
A plumber's coming in to look at the boiler.有位水暖工要来看看热水器.Give it up, plumber. She's not budging.别费劲了, 水管工. 她不会改变主意的.He must be a good plumber, or else he wouldn't be so busy...他肯定是个不错的管子工，要不然他不会那么忙。The plu...
" Ao -- " The old wolf wails mournfully toward the wilderness time and again.嗷 —— 它向旷野发出绝望而又凄凉的长嚎,一声又一声.The hatter shook his head mournfully.帽匠悲哀地摇摇头.Finally he started slowly, the wagon creaking and the cow lowing mourn...