Yes, there were filibusters in the past - most notably by segregationists trying to block civil rights legislation. 没错, 过去也有使用阻挠立法手段的 —— 尤其是种族隔离分子阻止民权法案使用过.
The painting had been executed with meticulous attention to detail.画这幅画的时候，画家非常注意细节。The whole cast executed the production with truly professional aplomb.全体演职人员以一种真正的专业精神，从容不迫地开始了影片的制作。A well-executed shot of a tall ship...
用途: 用作氧化铕的原料.Uses: as the raw material of manufacturing europium oxide.采用电解的方法将三价铕还原成二价.It is to reduce Eu 3 + into Eu 2 + with electrolyzation method.用途: 作提取钐. 铕. 0单一氧化物的原料.USES: As raw material in extracting single oxi...