Carbon, hydrogen and oxygen combine chemically to form carbohydrates and fats.碳、氢、氧化合形成碳水化合物和脂肪。Many smokers who are chemically addicted to nicotine cannot cut down easily.许多有尼古丁瘾的抽烟人不容易把烟戒掉.Chemically treated hair can b...
Without a word spoken, he hurried away, with his hoary head bending low.他什么也没说, 低着白发苍苍的头, 匆匆地走了.a hoary old joke老掉牙的笑话...the hoary old myth that women are unpredictable.“女人心，海底针”这种老一套的鬼话hoary hair灰白的头发They discussed the ...