In America most leisure-time activities are about a million times better than anywhere else...美国大多数休闲娱乐活动比其他地方要丰富得多的多。A clash with America over farm subsidies had left the Europeans and their common agricultural policy s...
以单质碘为催化剂合成了环戊酮乙二缩酮.Cyclopentanone ethylene ketal was synthesized with I _ 2 as catalyst.传统的缩酮化、酯化反应工业上多采用浓硫酸作催化剂.Traditional ketalization and esterification reactions are usually catalyzed by concentrated acid in industr...
They would have to offer cast-iron guarantees to invest in long-term projects.他们需提供绝对可靠的担保，才能投资长期项目。Business is booming and foreigners are scrambling to invest.商业繁荣，外国人争相投资。She wanted to set up her own company to invest ...
一件适时的礼物,就像是特洛伊木马一样有效.A timely gift – a Trojan horse – will serve the same purpose.我们热望全国一切军队能够得到适时的补充与扩大.We fervently hope that all troops can be duly replenished and expanded.适时的决策力是必需的.The ability to make decisions whe...