The shaking tram wires were sendingdown showers of white raindrops.
电车线振动下发细腻的白色雨滴。
2
Their explanation: a faint, far-off companion star to the Sun was sendingdown 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。
3
In case of trouble, a pilot pushes a button to begin sendingdown data, and in some conditions, like the failure of autopilot, the data streams automatically.