宽敞的生活区位于3楼。The spacious living quarters were on the second floor.高高的天花板会给人一种宽敞的感觉。A high ceiling creates a feeling of spaciousness.宽敞的主卧室以蓝色为主色调。The spacious main bedroom is mainly blue....
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 ...