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1·The meat was tough and flavourless.

这肉咬不动，又没有滋味。《牛津词典》

2·The polysaccharide was white, flavourless and soluble in water and insoluble in organic solvents, with 90.07% of polysaccharide, 88.25% of glucomannan and 2.53% of protein.

制备的酵母提取物为白色粉末，无味，易溶于水，不溶于有机溶剂，其总糖含量为90.07％，其中葡甘露聚糖含量为88.25％，蛋白质含量为2.53％。