大停顿// 小停顿/ bold 加强语气

Pluto冥王星 lost its official status地位 as a planet行星,/ when the International Astronomical天文的 Union downsized裁剪 the solar system太阳系/ from nine to eight planets.// Although there had been a passionate debate热烈的争论 at the IAU General Assembly Meeting集会 in Prague布拉格/ about the definition定义 of a planet,/ and whether Pluto met the specifications满足要求,/ the audience观众、听众 greeted赞同 the decision/ to exclude排除 it with applause掌声.