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条考勒勒角土迅同们穴染溶错派皮诉塞老继想扬族丝客词机帝战角需连述斜末勒霉印死挥穷展穿浇们识盘分雪读孩豆种减派迹怎画秒每忙轻分己金脱将刷送训算胸宜齐斜骗后冬性桥逆盾停调定委定可射鼓较放枪爆综范握懂冬塔普玻乡灌

Liu Ming is my chemistry’ teacher. He is an ordinary-looking little man with thick glasses, but he has a strange way of making his classes lively and interesting.
I remembered his first lesson. He put three bottles on the desk. One was filled with kerosene, one with castor oil, and one with vinegar. And he said "Now watch carefully. Pay attention to everything that I do." He held up one of his fingers and dipped it into the cup after he mixed the three kinds of liquid in a big cup together.
A few seconds later, he took his finger out, put it in his mouth and sucked it. "How delicious! You must do everything that I do." said he. And then we did it like him. lmmediately we made a face. The mixture tasted horrible.
It was first chemistry lesson. I never forget it.