石蕊: 从几种地衣类植物中获取的带色有机化合物的混合物.Litmus: Mixture of coloured organic compounds obtained from several species of lichens.地衣类植物生长速度慢,有好几年的寿命.其生长依赖于霉菌和海藻的共生.Lichens, which grow slowly and live for many years, result from fungi a...
Within a few minutes tempers had cooled...几分钟之内，火气就变小了。Tempers began to fray as the two teams failed to score.随着两队都没能破门得分，大家渐渐沉不住气了。As tempers rose, he spoke out strongly against some of the radical ideas for selling off...