Alex clenched her fists and gritted her teeth.亚历克丝攥紧拳头，牙咬得咯咯响。He gritted his teeth and plunged into the cold weather.他咬咬牙,冲向寒冷的天气.The rest of the group shouldered their bags, gritted their teeth and set off.那群人中其余的人扛起包，咬...
建筑物周围洒布杀虫药也能防止昆虫孳生.Spraying the area around buildings with an insecticide also prevents insect build up.为油漆 、 清漆、亮漆及杀虫药制剂中最适合用之溶剂.Excellent solvent for paints, varnishes stoving enamels and insecticide formulations.建筑物周围...