sending down短语¹⁰⁶¹⁰⁰⁺⁵ 基本例句 na.开除；使下降；使下落；使减少；🌏下达 Their explanation: a faint, far-off companion star to the Sun was sending down a rain of comets when it reached just the right point in its orbit. 他们的解释是这样的：遥远的地方，太阳有一颗微弱的伴星，当它到达轨道的某个定点时，就会产生大量彗星。 yeeyan