He thinks exoplanets are pulled towards the star by the dust and that when the dust runs out, the exoplanets stop moving.
他认为外部行星被尘埃拉向恒星，而当尘埃消耗殆尽时，外部行星停止运动。
2
Physically clean the beast: Stop by the local office store, grab a can of compressed air, and clean out the "dust bunnies", especially if you can hear the exhaust fans over the mid-day football.
But instead of letting failure stop us completely, you just need to get up and dust yourself off... and this part is important: learn from your experience.