Transpolyisoprene
反式聚甲基丁二烯
??? 情景例句
You've done a wonderful job.
你做得真棒！
After Flagstaff, we'll go to San Diego.
到佛拉格斯塔夫之后，我們去圣迭戈吧。
I'd like to congratulate you very much. That was a wonderful concert.
衷心祝賀你。這場音樂會真是太好了。