Methane and propane are alkanes.甲烷和丙烷是烷烃。The general uses of alkanes may be divided into three categories.烷的一般用途可分为三个方面.The straight - chain alkanes exacerbate the problem of engine " knock ".直链烷烃使机器的 “ 爆震 ” 问题更加严重....
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....
In this taut, subtle novel Hawthorne solves almost all his problems.在这部紧张而又难以捉摸的小说里,霍桑几乎解决了他所有的问题.By exchanging , disposing, copying and so on, It'solves the conflicts.然后利用置换、分解 、 增删、扩缩和复制等方法及其组合来解决矛盾问题.Do one'...
...grated lemon rind.磨碎的柠檬皮Remove rind from the cheese and work it to a firm paste, with a fork.将奶酪的外皮去掉，用叉子将其压成硬硬的膏状。Pare off the rind from the orange using a sharp knife.用锋利的刀子削去橙子皮.Add the grated orange rind and toss ...