再见到他是多么高兴、多么欢欣、多么美妙的事啊!What joy, what rapture, what glory to see him again!群众为这场足球赛而欢欣.The crowd was keyed up for the football match.由于创作的乐趣,我感到满足和欢欣.I was full and effervescing with joy of creation....
Chitin synthase is the important enzyme that converts UDP - GlcNAc to chitin.摘要几丁质合成酶是生物合成几丁质的关键物质.Chitin, chitosan are recycling natural polymers with abundant and excellent properties.甲壳素 、 壳聚糖是可再生的天然高分子化合物,来源丰富、性质优良.C...