They found hydrogen sulphide levels decreased in 80% of participants.
They found hydrogen sulphide levels decreased in 80% of participants.
他们发现受试者口腔内的硫化氢含量降低了80%。
They found hydrogen sulphide levels decreased in 80% of participants.
他们发现受试者口腔内的硫化氢含量降低了80%。