The research was carried out on tomato plants and tobacco plants by cutting their stems and depriving them of water.
研究对象是番茄植物和烟草植物，方法是切断它们的茎并除去它们的水分。
2
The world's first treaty aimed at cuttingtobacco-related deaths has come into force.
全球第一个力求减少与香烟有关的死亡的条约《世界卫生组织烟草控制框架公约》开始生效。
3
The officials, who included area MPs, local leaders and technical staff, complained that tobacco farmers were indiscriminately cutting down trees for firewood to cure their harvested tobacco.