Mr Guppy has no eyes for either of these magnates.格皮先生顾不上看那两位大人物了.Guppy put on his best clothes and went to the theater.Guppy穿上他最好的衣服去了剧院.In their quest for mates, some guppy males are show - offs.一些雄性的孔雀鱼在追求伴侣时更注重外表....
Lactic acid, acetic acid and butyric acid coexisted in sour brewing products.酸味酿造产品中乳酸 、 醋酸、丁酸共存,但比例不同形成的酸味特征也不同.Sulfa drugs themselves are also lactic acid bacteria cells.磺胺类药物本身对乳酸菌亦有杀伤作用.Acid production of lactic acid...