He was killed because he ignored a warning to put stronger cords on his parachute...他忽视了降落伞上要求使用更结实的绳索的警告信息，因而命丧黄泉。First commercialization application just is knitted make sock and parachute.最初的商品化应用只是织制袜子和降落伞.The airman...
Chocolate comes from the cacao tree.巧克力出自可可树。Some coffee and cacao are grown for export.种植的咖啡豆和可可豆有些是为了出口.Wealthy people drank cacao and said it was good for the digestion.富人喝可可,说它对消化有好处....