1.The security industry is also keeping a close watch.
keep a close watch密切注视
Keep a close watch on the enemy's movements.
密切注意敌人动向 。
2.Agabi said computers have used silicon for decades, but it is not powerful enough to deal with the maths needed to recognize smells.
deal with应付;对待
Overcrowding has taxed the city's ability to deal with waste.
人口过多使得城市的垃圾处理能力达到了极限 。