positive: 氯化铝溶液与氨水反应:<br>AL3+ + 3NH3*H2O ===== AL(OH)3(沉淀) + 3 NH4+<br>氧化铝与盐酸反应:<br>AL2O3 + 6H+ ======2AL3+ + 3H2O
negative: He is an outgoing and lively person.<br>他是个性格开朗而又活泼的人。She's a lively child and popular with everyone.<br>她是个活泼的孩子,大家都喜欢她。Life on campus is friendly, safe and very lively.<br>校园生活是友好的,安全的和十分活跃的。It was a confusing, yet lively era.<br>它是混乱的,也是活跃的年代。She formed a lively dog out of the clay.<br>她用泥做了一只栩栩如生的狗。He has created many lively fictional characters with his wonderful writing.<br>他的神笔之下曾塑造了很多栩栩如生的小说人物。I had been touring with a lively metaphysical group for almost three weeks through the temple sites of Egypt and Greece.<br>我已经用差不多三个星期随同一个真实的超自然的团体通过埃及和希腊的寺庙位置游览参观。Friday's spring equinox will bring the Sun into Aries and a lively social life to your doorstep.<br>周五的春分点将把太阳带入白羊座并且把真实的社会生活带到你的门槛。<br><h2>权威例句</h2><br>