flatulence gas造句

• If the recipient of the TooT TrappeR seems a bit " put off " by the gift, you might want to remind him or her that secondary flatulence gas has been linked to an increase in cancer.
• :: There was a larger studie on flatulence gas mixture analysis a read a few years ago ( I thought about how the collection was done ) and there a peolple with hydrogen as a main compound while others have methane as a main compound, most of it is carbon dioxide any way.