议长先生，我们向总统表达的意思非常简单。Mr. Speaker, our message to the president is simple.议长先生, 我想提出一项动议.I'd like to propose a motion, Mr. Speaker.当议长走进议事厅的时候，前面由执议长权标的人开路。The Speaker is preceded by the mace-bearer upon his entry to ...
A lustrous, blackish - brown rare earth mineral consisting primarily of cerium , erbium , titanium , uranium, and yttrium.一种红褐色矿物, 含稀土金属, 是钍和铈的主要来源.The titanium ascorbate was the substance of low toxicity to fish, shellf...