例句與造句

1. Like many distant quasars, this object sends geysers of atom fragments spewing at right angles to a disk of hot, spinning gas.
2. He proposed that the synthesis of fatty acids proceeds stepwise, by a gradual condensation of two-carbon-atom fragments and that oxidation of fatty acids occurs by splitting into two-carbon units.
3. It's difficult to find atom fragments in a sentence. 用atom fragments造句挺難的