老杰克咽气的时候已经90多岁了.Old Jack was over 90 when he snuffed it.我们坐在那里,轮番抽着他那支野里野气的烟斗.We sat exchanging puffs from that wild pipe of his.氡和钍射气的子体易被气溶胶吸附.The daughter nuclides of radon and thoron tend to become attached....
An acrobat has to be agile.杂技演员必须身手敏捷.a trapeze acrobat(杂技)空中飞人表演The acrobat balanced a long pole on his left shoulder.杂技演员让一根长杆在他的左肩上保持平衡.The acrobat bounced high from the ground.那个杂技演员从地面上一下子弹跳得老高。The acrobat could ben...