烯空气跟空气十分近似.Olefin gas closely approximates air.所有的主要难点都涌现在烯酮 ( 1 ) 的合成中.All the chief difficulties crop up in the synthesis of the enone ( 1 ).某碳氢化合物已知可能是烯烃或是烷烃.A hydrocarbon was known to be either an alkene or alkane....
“我们请她来吃晚饭吧。”——“除非我死了！”"Let's invite her to dinner." — "Over my dead body!"他们邀请我去吃晚饭并住上一晚。They had invited me to come to supper and stay the night.吃过晚饭，尼娜和玛丽在厨房里收拾。Nina and Mary were in the kitchen, cleaning up after...
是的, 但首先把摩尔的那些档案立即拿来.Yes, but first of all, fetch me those Moore files right away.我经常跟达特摩尔的生意人打交道, 所以他们从不找我的麻烦.I always deal with Dartmoor's tradesmen, and consequently they never bother me.西摩尔的 “ 游戏 ” 给我们两个重要的启示.Sey...